Jake Gyllenhaal is a proud brother-in-law right now!

The 42-year-old actor took to his Instagram account this weekend to celebrate his BIL Peter Sarsgaard‘s big win for Best Actor at the 2023 Venice Film Festival.

Peter took home the Volpi Cup award for his work in the movie Memory and he was joined at the awards ceremony by his wife Maggie Gyllenhaal, who is Jake‘s sister.

Keep reading to find out more…

“Congratulations to my incredible (and incredibly talented) brother in law @gaardsars for winning Best Actor at the Venice Film Festival! Couldn’t be happier for this extraordinary human. Love you brother,” Jake wrote on Instagram.

Here’s the synopsis for Memory: “Before meeting one another at a high school reunion, recovering alcoholic Sylvia (Jessica Chastain) and widower Saul (Sarsgaard) have endured more than their share of suffering. She remembers being sexually abused as a girl, and believes that Saul might be one of the older boys involved. He suffers from dementia, making it difficult to trust what he remembers, whether it happened in the distant past or just five minutes ago,” according to Variety.

Pictured inside: Jake grabbing dinner at Via Carota restaurant on Wednesday (September 6) in New York City.