Zac Efron displayed a very different look when he was seen on the set of his upcoming thriller Famous on Tuesday.
The actor, 37, who plays dual roles in the movie including a Hollywood heartthrob and a fan, was seen with a wider jaw and more angular facial features.
While filming the A24 thriller in Los Angeles, he sported a 90s style look consisting of bleached jeans with a yellow T-shirt tucked into the waistband.
Zac was joined by a female co-star who was seen hopping out of a vintage sports car for the scenes.
She wore a floral crop top with a denim mini skirt and knee-high leather boots, accessorising with a pair of statement earrings.
Famous is based on the novel of the same name by Blake Crouch and will also feature Phoebe Dynevor, with the actress been spotted filming with Zac last month.
Zac Efron displayed a very different look when he was seen on the set of his upcoming thriller Famous on Tuesday
Zac has maintained that his changing features are a result of that near-death experience, when a slip in a puddle left his chin bone 'hanging off his face.'
In 2022, Zac appeared on the cover of Men's Health Magazine, and explained what happened to his face - after rumors of plastic surgery circulated since the prior year.
In his interview, Zac revealed that he had a nasty accident at home that caused the massive transformation in his face.
The star recalled how he slipped on a pair of socks while running at his home - causing him to smash his chin into a granite fountain.
Zac said that when he was injured, the masseter muscles on the inside of his face and jaw then 'compensated' for his injury causing them to grow in size - hence his remarkable transformation.
He says this explains why he looked so different at the time. 'The masseters just grew. They just got really, really big.'
The High School Musical star also claimed to not know that he was a huge talking point on social media and had in fact gone viral for his different-looking jaw, until his mother called to ask if he had gone under the knife.
'If I valued what other people thought of me to the extent that they may think I do,' he told the magazine, 'I definitely wouldn't be able to do this work.'
The actor, 37, who plays dual roles in the movie including a Hollywood heartthrob and a fan, was seen with a wider jaw and more angular facial features
While filming the A24 thriller in Los Angeles, Zac was joined by a female co-star who was seen hopping out of a vintage sports car
In April 2021, Efron started trending on Twitter after he was seen on a video for Earth Day! The Musical displaying a more prominent square chin and heavier jawline.
It led fans to speculate that the handsome star had sought plastic surgery.
Efron's pal Kyle Sandilands had also spoke on his behalf - saying the Baywatch star would never do such a thing, comparing him to an oil painting by one of the Old Masters.
The Australian radio host, who has known Zac for years, shut down speculation during The Kyle and Jackie O Show at the time.
'I would know if he'd had any plastic surgery,' Kyle declared, before telling his co-host Jackie 'O' Henderson that 'of course' Zac hadn't had work done.
He then said it would be pointless for the heart-throb to have surgery because he's already so good looking.
'It's like getting a Picasso and having a kid finger paint all over it. Why bother?' he said bluntly.
It was revealed in July this year that Zac had been cast in Famous and would be teaming up with A24 once again following his performance in The Iron Claw, which released in December 2023.
Famous is based on the novel of the same name written by Blake Crouch - who is also known for penning Dark Matter.
Fans first noticed Zac's jaw looked quite different in a 2021 Earth Day video (pictured left) than from his High School Musical days (pictured right in 2006)
Zac has maintained that his changing features are a result of that near-death experience, when a slip in a puddle left his chin bone 'hanging off his face'
The former Disney channel star plays dual roles in the film, including a Hollywood heartthrob named James Jansen and a fan, Lance Dunkquist.
The premise is: 'Lance Dunkquist has the face of a movie star. Not just any movie star - Lance has been mistaken for Hollywood star James Jansen 228 times.'
'And now Lance is about to go to LA to make his dream come true. No matter what it takes,' per an official IMDB synopsis.
Two months earlier in September, it was announced that Bridgerton star Phoebe had joined the cast.
Most recently, Efron starred in the Netflix romantic comedy, A Family Affair, along with Nicole Kidman and Joey King.
The movie hit the streaming site during the summer in June - but received mixed reviews from critics.
Zac also portrayed Kevin Von Erich in A24's The Iron Claw, which gained positive reception and currently holds a score of 89% on Rotten Tomatoes.