She's played a boxer, survived Euphoria's most gruelling storylines, and now Sydney Sweeney has added wing-walking to her ever-expanding CV of daring pursuits — with a cheeky warning to Hollywood's reigning stunt king thrown in for good measure.

The actress shared a video on Instagram showing herself strapped to the top of a flying biplane, wearing protective goggles and a red safety vest, camera in hand, as the aircraft performed dramatic turns and rolls — including a stomach-dropping moment when it flipped completely upside down.

"Watch out, Tom Cruise," Sweeney wrote in the caption, and if the reaction from Hollywood was anything to go by, the message landed.

The internet responds

The clip spread rapidly, drawing comparisons to Cruise's celebrated aerial wing-walking sequence in Mission: Impossible – The Final Reckoning, in which the actor performed a high-altitude stunt on a Stearman biplane, rolling and looping at speeds of up to 140 mph at 8,000 feet in the air. It is already considered one of the franchise's most spectacular set pieces.

The official Top Gun Instagram account was quick to join the fun, commenting, 'Feel the need for speed.' Global action entertainment brand Nitro Circus also chimed in with, 'Come fly with us Sydney!' Actress Leslie Mann offered a rather more cautious response: 'Be careful!!'

Sweeney's friend Eddy Chen, meanwhile, offered perhaps the most relatable reaction of all: 'Thank gawd I didn't go.'

A UK-based stunt with professional backing

The stunt was carried out with The Wing Walk Company, which is believed to have confirmed the experience took place in the UK. The company left a glowing comment on the post: 'You were brilliant… we LOVED having you!' It's a ringing endorsement that suggests Sweeney — whatever else she gets up to — is a natural in the sky.

Two movie stunt shots: man in brown jacket clinging to helicopter bar over green hills; man in black suit hanging from aircraft over runway.

For anyone who follows the actress's social media, the stunt won't come as a complete shock. Sweeney has previously shared footage of bungee jumping, helicopter rides and speedboat trips, suggesting a genuine appetite for pushing limits rather than a one-off publicity flourish.

A career that keeps climbing

The timing is notable. Sweeney has been steadily broadening her range beyond the roles that first made her a household name — including her breakout work in Euphoria and The White Lotus — and into more physically demanding territory. She recently bulked up to portray real-life professional boxer Christy Martin in the upcoming biopic Christy, a role that required serious athletic commitment.

Her film slate is as packed as her stunt schedule. Credits include Anyone but You, Immaculate, Madame Web and The Housemaid, with The Custom of the Country — based on Edith Wharton's novel — on the horizon.

The Wing Walk Company commented: 'You were brilliant… we LOVED having you!'

Whether Sweeney's biplane adventure is pure fun or something closer to research for a future action role remains to be seen. But with Cruise's wing-walking sequence yet to hit cinema screens and Sweeney already doing her own version for Instagram, the battle for most committed aerial performer in Hollywood has suddenly got a great deal more interesting.

One thing is certain: Tom Cruise has been warned.