Joshua Jackson is 'Over the Moon' About Ex Diane Kruger's Best Actress Win at Cannes Film Festival 2017

Aw! Exes Joshua Jackson and Diane Kruger still support each other.

The 38-year-old actor took to Instagram to congratulate his ex-girlfriend of 10 years for her Best Actress win at the 2017 Cannes Film Festival for her work in In the Fade.

“Yes she Cannes,” Josh wrote. “Having witnessed the integrity and dedication that you bring to every job, I’m over the moon to see you getting the recognition you deserve. Only question is what took ‘em so long! CONGRATULATIONS, Josh #dianekruger”

Pictured below: Diane steps out in a Jonathan Simkhai gown at the Closing Ceremony of the festival on the day she wins at Palais des Festivals on Sunday (May 28) in Cannes, France.

FYI: Diane is wearing a Jonathan Simkhai dress, Giuseppe Zanotti shoes, and Chopard jewelry at the closing ceremony.