Entertainment Movies Riley Keough Marks 33rd Birthday After Her Directorial Debut Wins at Cannes: 'What the Heck' "It's my birthday in Greece and I won the Camera d'Or," Riley Keough wrote as she celebrated her birthday weekend after her and co-director Gina Gammell's film War Pony debuted at Cannes By Glenn Garner Glenn Garner Instagram Twitter Glenn Garner is a Writer/Reporter who works heavily with PEOPLE's Movies and TV verticals. Since graduating from Northern Arizona University with a dual major in journalism and photography, he got his professional start at OUT Magazine, The Advocate and Teen Vogue, and he's since consistently kept his finger on the pulse of the LGBTQ community. His first book The Guncle Guide was released in 2020 and was featured on Katie Couric's list of 100 recommended books of the year. People Editorial Guidelines Published on May 29, 2022 03:02 PM Share Tweet Pin Email Photo: Gisela Schober/Getty Riley Keough has a lot to celebrate this weekend. The Golden Globe nominee marked her 33rd birthday a day early on Saturday, posing for a mirror selfie in an orange two-piece bikini and some pearl-studded gold hoop earrings. "It's my birthday in Greece and I won the Camera d'Or… 🤷♀️what the heck. God bless," Keough wrote in the Instagram caption. Riley Keough Praises Austin Butler's Performance as Grandfather Elvis Presley: 'Didn't Stop' Crying Her famous friends celebrated with her in the comments section. "Birthday Beauty! Sending you 💗☀️🌸," Reese Witherspoon wrote. "QUEEN S—T ❤️🙌❤️," Olivia Wilde commented. "Happy birthday 🥳🥳," wrote Sara Sampaio. "Happy birthday sweet girl ❤️," Alanna Masterson replied. Keough's birthday post comes after she won the coveted Caméra d'Or alongside co-director Gina Gammell for War Pony at Saturday's closing ceremony for the 75th Cannes Film Festival. The award goes to the festival's best feature directorial debut. War Pony stars first-time actor Jojo Bapteise Whiting as Bill, a young Oglala-Lakota native navigating life on the reservation while striving for his next hustle. Although Whiting couldn't be in attendance at Cannes, his mother Tonya Masten attended with a framed photo of her son. "I'm very overwhelmed. I haven't really taken it all in yet," Keough told PEOPLE after her film's premiere earned a six-minute ovation. "It's been wonderful ... we're just excited." The film debuted at Cannes alongside Baz Luhrmann's Elvis, a visually-striking biopic about the titular King of Rock and Roll, Elvis Presley, who happens to be Keough's late grandfather. RELATED VIDEO: Lisa Marie Presley Shares Sweet Photo with All 4 of Her Kids: 'Mama Lion with Cubs' Keough previously caught an early look at the film with mom Lisa Marie Presley and grandmother Priscilla Presley. She said it "was a real honor to know Baz was doing this movie" as she opened up about her reaction to the film at the Variety Women in Motion panel during Cannes. "In the first five minutes, I could feel how much work Baz and Austin [Butler] put into trying to get it right. That made me emotional immediately," Keough said. "I started crying five minutes in and didn't stop. There's a lot of family trauma and generational trauma that started around then for our family. I felt honored they worked so hard to really get his essence, to feel his essence. Austin captured that so beautifully."