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Paul Mescal and Josh O’Connor Premiere ‘The History of Sound’ in NYC, Post Malone Debuts Fashion Line in Paris and More Celeb Photos: September 2025

By Kim Browne

Paul Mescal and Josh O’Connor Premiere ‘The History of Sound’ in NYC, Post Malone Debuts Fashion Line in Paris and More Celeb Photos: September 2025

September arrived with Emily Blunt and teary-eyed Dwayne Johnson premiering their Oscar-buzzy “The Smashing Machine” during the Venice Film Festival. Also at the fest were Idris Elba, Greta Lee, Sofia Coppola and Marc Jacobs, among many others.

Post Malone debuted his clothing line Austin Post with a fashion in Paris.

Red carpets were rolled out in New York City for Paul Mescal and Josh O’Connor at the “The History of Sound” premiere and in Los Angeles for the premiere of “Twinless” with stars Dylan O’Brien, James Sweeney, Chris Perfetti and Aisling Franciosi.

As usual, the US Open was celeb-filled with likes of Jeremy Allen White, Jason Clarke and Marcello Hernandez of “Saturday Night Live.”

Make sure to keep checking back here all month long for more of September 2025’s best celebrity pics.

Oscar Isaac

VENICE, ITALY - SEPTEMBER 03: Oscar Isaac arrives at Hotel Excelsior during the 82nd Venice International Film Festival on September 03, 2025 in Venice, Italy. (Photo by Pascal Le Segretain/Getty Images)VENICE, ITALY - SEPTEMBER 03: Oscar Isaac arrives at Hotel Excelsior during the 82nd Venice International Film Festival on September 03, 2025 in Venice, Italy. (Photo by Pascal Le Segretain/Getty Images)

Oscar Isaac arrives at Hotel Excelsior during the 82nd Venice International Film Festival on Sept. 3.

Letitia Wright

LONDON, ENGLAND - SEPTEMBER 03: Letitia Wright, Director of ‘Highway to the Moon’, attends the 69th BFI London Film Festival press launch at BFI Southbank on September 03, 2025 in London, England. (Photo by Jeff Spicer/Getty Images)LONDON, ENGLAND - SEPTEMBER 03: Letitia Wright, Director of ‘Highway to the Moon’, attends the 69th BFI London Film Festival press launch at BFI Southbank on September 03, 2025 in London, England. (Photo by Jeff Spicer/Getty Images)

Letitia Wright, director of “Highway to the Moon,” attends the 69th BFI London Film Festival press launch at BFI Southbank on Sept. 3.

Amanda Seyfried

VENICE, ITALY - SEPTEMBER 03: Amanda Seyfried departs from Hotel Excelsior during the 82nd Venice International Film Festival on September 03, 2025 in Venice, Italy. (Photo by Pascal Le Segretain/Getty Images)VENICE, ITALY - SEPTEMBER 03: Amanda Seyfried departs from Hotel Excelsior during the 82nd Venice International Film Festival on September 03, 2025 in Venice, Italy. (Photo by Pascal Le Segretain/Getty Images)

Amanda Seyfried departs from Hotel Excelsior during the 82nd Venice International Film Festival on Sept. 3.

Jeremy Allen White

Jeremy Allen White in attendance at the 2025 US Open, Tuesday, Sep. 2, 2025 in Flushing, NY. (Michael Mooney/USTA)Jeremy Allen White in attendance at the 2025 US Open, Tuesday, Sep. 2, 2025 in Flushing, NY. (Michael Mooney/USTA)

Jeremy Allen White attends the US Open on Sept. 2 in Flushing, New York

Paul Mescal and Josh O’Connor

NEW YORK, NEW YORK - SEPTEMBER 02: (L-R) Paul Mescal and Josh O'Connor attend "The History Of Sound" New York Premiere at Walter Reade Theater on September 02, 2025 in New York City. (Photo by Jamie McCarthy/Getty Images)NEW YORK, NEW YORK - SEPTEMBER 02: (L-R) Paul Mescal and Josh O'Connor attend "The History Of Sound" New York Premiere at Walter Reade Theater on September 02, 2025 in New York City. (Photo by Jamie McCarthy/Getty Images)

“The History of Sound” co-stars Paul Mescal and Josh O’Connor reunite at the movie’s New York City premiere at the Walter Reade Theater on Sept. 2.

Marcello Hernandez

Marcello Hernandez walks the Blue Carpet at the 2025 US Open, Tuesday, Sep. 2, 2025 in Flushing, NY. (Michael Mooney/USTA)Marcello Hernandez walks the Blue Carpet at the 2025 US Open, Tuesday, Sep. 2, 2025 in Flushing, NY. (Michael Mooney/USTA)

“Saturday Night Live” star Marcello Hernandez arrives at the US Open on Sept. 2.

Aisling Franciosi, James Sweeney, Dylan O’Brien and Chris Perfetti

Aisling Franciosi, James Sweeney, Dylan O'Brien, Chris Perfetti at the "Twinless" Los Angeles Premiere held at the Pacific Design Center on September 02, 2025 in Los Angeles, California. (Photo by Michael Buckner/Variety via Getty Images)Aisling Franciosi, James Sweeney, Dylan O'Brien, Chris Perfetti at the "Twinless" Los Angeles Premiere held at the Pacific Design Center on September 02, 2025 in Los Angeles, California. (Photo by Michael Buckner/Variety via Getty Images)

Aisling Franciosi, James Sweeney, Dylan O’Brien and Chris Perfetti attend the “Twinless” Los Angeles premiere at the Pacific Design Center on Sept. 2.

Jason Clarke

NEW YORK, NEW YORK - SEPTEMBER 02: Jason Clarke attends the Heineken Suite at the 2025 US Open Tennis Championships at USTA Billie Jean King National Tennis Center on September 02, 2025 in New York City. (Photo by Craig Barritt/Getty Images for Heineken)NEW YORK, NEW YORK - SEPTEMBER 02: Jason Clarke attends the Heineken Suite at the 2025 US Open Tennis Championships at USTA Billie Jean King National Tennis Center on September 02, 2025 in New York City. (Photo by Craig Barritt/Getty Images for Heineken)

Jason Clarke attends the Heineken Suite at the 2025 US Open Tennis Championships at USTA Billie Jean King National Tennis Center on Sept. 2 in Flushing, New York.

Colman Domingo and Gus Van Sant

VENICE, ITALY - SEPTEMBER 02: Colman Domingo and Gus Van Sant attend the "Campari Passion For Film Award 2025" and the "Dead Man's Wire" red carpet during the 82nd Venice International Film Festival on September 02, 2025 in Venice, Italy. (Photo by Andreas Rentz/Getty Images)VENICE, ITALY - SEPTEMBER 02: Colman Domingo and Gus Van Sant attend the "Campari Passion For Film Award 2025" and the "Dead Man's Wire" red carpet during the 82nd Venice International Film Festival on September 02, 2025 in Venice, Italy. (Photo by Andreas Rentz/Getty Images)

Colman Domingo and Gus Van Sant attend the “Campari Passion For Film Award 2025” and the “Dead Man’s Wire” red carpet during the 82nd Venice International Film Festival on Sept. 2

Domhnall Gleeson

NEW YORK, NEW YORK - SEPTEMBER 02: Domhnall Gleeson speaks onstage during SAG-AFTRA Foundation Conversations - "The Paper" Screening and Conversation at SAG-AFTRA Foundation Robin Williams Center on September 02, 2025 in New York City. (Photo by Dia Dipasupil/Getty Images)NEW YORK, NEW YORK - SEPTEMBER 02: Domhnall Gleeson speaks onstage during SAG-AFTRA Foundation Conversations - "The Paper" Screening and Conversation at SAG-AFTRA Foundation Robin Williams Center on September 02, 2025 in New York City. (Photo by Dia Dipasupil/Getty Images)

Domhnall Gleeson speaks onstage during SAG-AFTRA Foundation Conversations – “The Paper” Screening and Conversation at SAG-AFTRA Foundation Robin Williams Center on Sept. 2 in New York City.

Idris Elba

Idris Elba at the "A House Of Dynamite" red carpet at The 82nd Venice International Film Festival on September 02, 2025 in Venice, Italy. (Photo by Earl Gibson III/Deadline via Getty Images)Idris Elba at the "A House Of Dynamite" red carpet at The 82nd Venice International Film Festival on September 02, 2025 in Venice, Italy. (Photo by Earl Gibson III/Deadline via Getty Images)

Idris Elba suits up at the “A House Of Dynamite” red carpet at The 82nd Venice International Film Festival on Sept. 2.

Greta Lee

Greta Lee at the "A House Of Dynamite" red carpet at The 82nd Venice International Film Festival on September 02, 2025 in Venice, Italy. (Photo by Earl Gibson III/Deadline via Getty Images)Greta Lee at the "A House Of Dynamite" red carpet at The 82nd Venice International Film Festival on September 02, 2025 in Venice, Italy. (Photo by Earl Gibson III/Deadline via Getty Images)

Greta Lee stuns at the “A House Of Dynamite” red carpet at The 82nd Venice International Film Festival on Sept. 2.

Post Malone

PARIS, FRANCE - SEPTEMBER 01: Post Malone acknowledges the audience during the Austin Post Runway Show on September 01, 2025 in Paris, France. (Photo by Kristy Sparow/Getty Images)PARIS, FRANCE - SEPTEMBER 01: Post Malone acknowledges the audience during the Austin Post Runway Show on September 01, 2025 in Paris, France. (Photo by Kristy Sparow/Getty Images)

Post Malone debuts his first clothing line Austin Post during a runway show Sept. 1 in Paris.

Sofia Coppola and Marc Jacobs

Sofia Coppola, Marc Jacobs at the "Marc by Sofia" red carpet at The 82nd Venice International Film Festival on September 02, 2025 in Venice, Italy. (Photo by Earl Gibson III/Deadline via Getty Images)Sofia Coppola, Marc Jacobs at the "Marc by Sofia" red carpet at The 82nd Venice International Film Festival on September 02, 2025 in Venice, Italy. (Photo by Earl Gibson III/Deadline via Getty Images)

Sofia Coppola and Marc Jacobs pose for the photographers at the premiere of their documentary “Marc by Sofia” the the Venice Film Festival on Sept. 2.

Emily Blunt and Dwayne Johnson

Emily Blunt, Dwayne Johnson at the "The Smashing Machine" Premiere at The 82nd Venice International Film Festival on September 01, 2025 in Venice, Italy. (Photo by Earl Gibson III/Deadline via Getty Images)Emily Blunt, Dwayne Johnson at the "The Smashing Machine" Premiere at The 82nd Venice International Film Festival on September 01, 2025 in Venice, Italy. (Photo by Earl Gibson III/Deadline via Getty Images)

Emily Blunt and Dwayne Johnson atyrnd the “The Smashing Machine” premiere during the Venice International Film Festival on Sept. 1.

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Paul Mescal and Josh O’Connor Premiere ‘The History of Sound’ in NYC, Post Malone Debuts Fashion Line in Paris and More Celeb Photos: September 2025 - GQ British Lifestyle