Kevin Costner, Pamela Anderson and Robbie Williams lead celebrity arrivals at the Deadline Contenders Film: Los Angeles

Some of Hollywood's biggest names have all come together for a special film event.

The Deadline Contenders Film: Los Angeles showcase was held in Hollywood at the DGA Theatre over the weekend, and it was a star-studded occasion to say the least.

The annual day-long event celebrated 21 of the season's films from Robbie Williams' biopic to Pamela Anderson's upcoming film The Last Showgirl.

Read on to see all the famous faces who showed up for the day this year.

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Kevin Costner has been spotted out and about in Los Angeles following his Yellowstone exit.

The actor stopped by the Deadline Contenders Film: Los Angeles showcase wearing his best knit and glasses.

The appearance comes just days after the first episode of Yellowstone season five part two aired, in which Costner's character John Dutton has been written off the series.

Stream every episode of Yellowstone on Stan.

The actor was all smiles as he spoke on stage at an event for his latest project, Horizon: An American Saga – Chapter 1.

Costner stars in and directed the western drama film. 

This single photo has a lot of star power!

At one point during the event, Costner stopped to chat and take photos with fellow Hollywood legend, Julianne Moore.

Moore has been sharing some very wholesome red carpet moments with her co-star Tilda Swinton on The Room Next Door press tour – and the pair's recent outing was just as heartwarming.

Moore couldn't hide her excitement when Swinton showed up mid-chat with filmmaker Sean Baker.

The co-stars took some pictures together before heading in for the event.

Moore kept it casual in an pair of jeans with a tucked Alaïa top while Swinton was all business in a suit and tie.

What a fashionable duo!

Next year is going to be a big one for Pamela Anderson fans, with the '90s icon making her highly-anticipated screen comeback in Gia Coppola's The Last Showgirl.

The actress is already out and doing press for the film, stopping by Deadline Contenders Film: Los Angeles for the showcase.

Anderson wowed in white for the occasion, pairing her long cardigan with a pair of pointed toe heels.

There was one notable detail in the star's latest look – she wasn't wearing any makeup.

Since Paris Fashion Week in 2023, the actress has gone bare-faced for several public appearances for events and red carpets.

She's returned to wearing makeup on occasion since, such as the 2024 Met Gala in May, but was really the one to kickstart the makeup free movement all the celebrities have been loving lately.

Robbie Williams suited up for the occasion in a matching pinstriped jacket and pants.

The singer is currently promoting his upcoming biopic, Better Man, which hits Aussie theatres on Boxing Day.

While taking photos on the red carpet, Anderson sweetly greeted Grammy-winning singer Jon Batiste with a hug.

How cute!

Batiste seemed to get a bit confused on how to play the keyboard...

The award-winning musician hilariously 'played' the instrument alongside Saturday Night filmmaker, Jason Reitman.

Batiste composed the score for Saturday Night, which stars the likes of Ella Hunt, Cory Michael Smith, Rachel Sennott, Lamorne Morris, Kaia Gerber and Dylan O'Brien.

Academy Award-winning actress Lupita Nyong'o has been back in the spotlight and serving some serious looks over the last few months while promoting her latest project, The Wild Robot.

For her recent appearance at the Los Angeles panel event, Nyong'o opted for a red mini dress with some cute fringe details on the hem.

The Crown star Josh O'Connor was beaming on stage while chatting all things Challengers – his tennis rom-com film starring Hollywood star Zendaya and Mike Faist.

The actor looked comfy in a pair of jeans and cheery red boots.

Academy Award nominee Aunjanue Ellis-Taylor showed off her dramatic cape.

The American actress, who has starred in the likes of Origin, The Deliverance and King Richard, went all out for the showcase day in a bright orange look with some statement earrings to tie the whole outfit together.

Actor Brian Tyree Henry made a stylish appearance in LA in a dress shirt and baggy trousers.

The star was there to speak on a panel about one of his latest projects, a sport drama film titled The Fire Inside.

Henry has also been doing press for his animated film, Transformers One, starring Aussie actor Chris Hemsworth.

The actor was Down Under in September for the premiere of the movie, where he spoke to 9honey Celebrity on the red carpet about rumours his Bullet Train co-star Aaron Taylor-Johnson could be up for the next James Bond gig.

Jeremy Piven was also in attendance!

The Entourage star suited up for the event.