Chris Hemsworth shared snaps of himself and his family letting their hair down at their brother Luke's Peaky Blinders themed 40th birthday party.
The hunky actor, 37, celebrated Luke's bash in Byron Bay, Australia on Sunday, with his younger brother Liam Hemsworth, 30, and other family members and friends.
Those in attendance all glammed up in 1920s and 1930s costumes that wouldn't look out of place in the television drama series.
Chris donned a pair of grey trousers and 1920s-style waistcoat which he paired with a pair of smart leather shoes.
Liam flaunted his bulging muscles in a white tank top worn which he wore with braces and dark pants, and finished his look with a dapper flat cap.
Chris captioned the snaps from the happy day: "Happy 40th birthday @hemsworthluke you big legend!!"
Liam also shared a snap of him and his two brothers on Instagram on Thursday to mark Luke's birthday.
He wrote alongside the snap: "Happy 40th birthday! You've been a wonderful brother all these years. I've taught you well... the rest is up to you. Love you, Luke!"
Luke replied in the comment section: "Thanks, Liam. You'll always be the the little brother who's best at crying! Love you forever."
Luke had his hair slicked back and wore a swanky suit with a vintage fob chain hanging from it.
Also at the bash was Chris' wife Elsa Pataky, 44, and Liam's girlfriend, Gabriella Brooks, 22.
The Hemsworth parents Craig and Leonie also joined in the fun as well as and Luke's wife Samantha Hemsworth, 40.
Elsa donned a flapper style mini-dress with tasseled edges, which she paired with lacy stockings and a feathered headpiece.
Gabriella wore a 1930s style gown and carried an ornate fan.
Chris' Netflix ’s smash hit action movie Extraction sequel was confirmed just days after the first film was released in May.
Australian action star Chris, 36, plays a mercenary named Tyler Rake in the film who is tasked with rescuing the kidnapped son of a drug baron in Bangladesh.
