Entertainment Movies Val Kilmer's Kids Mercedes and Jack Attend Cannes Film Festival Launch of His Documentary 'Val' Val follows Val Kilmer's life, career and recovery from throat cancer By Ale Russian Published on July 7, 2021 02:08 PM Share Tweet Pin Email Photo: Mike Marsland/WireImage Val Kilmer had the best people step in for him at the Cannes Film Festival — his kids! While the longtime actor didn't attend the photo-call for his upcoming documentary, Val, his daughter Mercedes, 29, and son Jack, 26 — wearing Celine by Hedi Slimane and Celine Homme, respectively — showed their support on Wednesday. The two are co-producers on the upcoming film. Mercedes and Jack were all smiles as they posed in the south of France. Kilmer's moving and intimate new documentary explores the actor's life, career and recovery from throat cancer. In the first trailer for the film, released on Tuesday, Kilmer shares an intimate look at his life through home movies, which also features glimpses of a young Kevin Bacon and Sean Penn. Val Kilmer Shares Intimate Look at His Life and Throat Cancer Recovery in Trailer for Val Doc Val poster. Amazon Prime Video At one point in the trailer, the 61-year-old actor uses his voice box to communicate how he has "tried to see the world as one piece of life." In another scene, he says, "I'm still recovering and it is difficult to talk and to be understood. But I want to tell my story more than ever." Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human-interest stories. Kilmer also shared the trailer on Twitter, writing, "It feels like yesterday and yet it has been a lifetime." "As I write this, my documentary is getting ready to premiere at Festival De Cannes. And as grateful as I am for being selected with this high honor, I look forward most to sharing my life's story with all of you," he wrote. Val will debut in theaters July 23 and be available to stream on Amazon Prime Video Aug. 3.