Once upon a time in Hollywood... men weren't worried about a crease here or there.

Sony has accidentally released a press photo for Once Upon A Time In Hollywood showing tweaks made to 43-year-old Leonardo DiCaprio and 54-year-old Brad Pitt.

Despite being two of the most handsome and in-demand bachelors in the industry, the studio still felt the co-stars needed a bit of airbrushing, the Daily Mail reports.

The promo pic shows to two A-listers standing side by side in their late sixties garb for Quentin Tarantino's upcoming period piece.

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But a closer look reveals Leo's second chin hanging over the neck of his yellow turtleneck has magically been tightened.

The original photo was released in June. Photo / Sony Pictures Entertainment
The original photo was released in June. Photo / Sony Pictures Entertainment

Brad meanwhile had his Adam's apple smoothed over with some neck wrinkles digitally evaporated.

The production team told Page Six on Wednesday that the error was theirs, and that neither heartthrob had requested nor were even aware of the edits.

"The actors did not request any retouching of photography from Once Upon a Time … in Hollywood," they said. "We take full responsibility for the error."

The new photo accidentally released shows tweaks made to the leading men. Photo / Sony Pictures Entertainment
The new photo accidentally released shows tweaks made to the leading men. Photo / Sony Pictures Entertainment

A source close to DiCaprio told the site: "He wasn't aware of any touch-ups, nor did he request it."

Sony has since deleted the press file.

In the film Leo plays former Western star Rick Dalton in the much-anticipated flick, while Brad, 54, stars as his longtime stunt double, Cliff Booth.

Leonardo DiCaprio and Brad Pitt are seen filming in Los Angeles, California. Photo / Getty Images
Leonardo DiCaprio and Brad Pitt are seen filming in Los Angeles, California. Photo / Getty Images

The pair embark on an odyssey to make a name for themselves again in the film industry they no longer recognize in the Hollywood of 1969 - the year of the Charles Manson murders.

Margot Robbie stars opposite the actors as Rick's next door neighbour and Manson family victim, Sharon Tate.

The stellar cast also features Al Pacino, Dakota Fanning, Burt Reynolds, Timothy Olyphant, Emile Hirsch, Kurt Russell, Damian Lewis, Michael Madsen, Tim Roth, and Luke Perry.