The most dramatic movie transformations that will make you grateful you’re not an actor

Zac Efron goes from buff to beautiful in this hilarious scene in his upcoming film Baywatch. Zac goes undercover by dressing up like a woman in a wide-brimmed hat, brunette wig, dress, sunglasses and even lipstick. Have to say, he looks amazing.

The Aussie babe is usually buff and fighting fit, but for his role in In the Heart of the Sea, Chris Hemsworth shrunk to a lean and bearded version of himself.

Charlize Theron won the 2003 Oscar for her phenomenal role as Aileen Wuornos in Monster. “I’m very proud of it. We couldn’t sell that movie to save our lives — we were going to sign a deal to just release it on video. A lot of people didn’t want to buy in to how horrific her story was,” she shared during an interview with Esquire

Renée Zellweger gained 14 kilograms to play the lead role in Bridget Jones’s Diary and, after losing it, had to regain it all for the sequel.

Nicole Kidman underwent a massive transformation for her role as Virginia Woolf in The Hours. The makeup took three hours daily and relied heavily on a large prosthetic nose – something the Aussie actress loved! “I did enjoy being anonymous,” she admitted during the press junket of the film. “It was fun to be able to go out of my trailer and not have anyone know me.”

Johnny Depp sported a balding look and paunch to play crime boss Whitey Bulger for Black Mass.

Meryl Streep embodied infamous former British Prime Minister Margaret Thatcher for her role in The Iron Lady. Describing the the role as “grueling” it won her an Oscar (29 years after her first win) with the film also winning the Academy Award for Best Makeup and the BAFTA Award for Best Makeup and Hair.

Glenn Close landed an Oscar nomination after her portrayal of Albert Nobbs. During an interview, Glenn revealed, “I cried when I first saw myself as a man.”

Eddie Redmayne adopted an entirely new when he took on the part of Lili Elbe, the first-known person to have undergone gender reassignment surgery for The Danish Girl.

Jake Gyllenhaal gained 12kgs of muscle to play a boxer in the film South Paw. A gruelling excise routine meant he spent up to six hours working out in the gym everyday.

Star Trek Beyond‘s heroine Jaylah is portrayed by Sofia Boutella. Describing her time on the set as “a joy,” the brunette beauty adored portraying the alien warrior, saying, “she’s a really fun character!”

Seeing double! Complete with the buffont hair and chic threads Katie Holmes looks identical to the late Jackie Kennedy Onassis (L). The actress is currently filming scenes for the upcoming mini-series, The Kennedys After Camelot.

Lovable funnyman Jason Segel has taken a turn from his usual comedy route for his role in the David Foster Wallace biopic The End of the Tour. Playing the famed American author, Jason put on over 18kg by eating Hot Pockets. “By the end, I was running out of time. I had about two weeks left, so I put myself on a Hot Pocket diet, which was two Hot Pockets every three hours,” Jason said on Good Morning America. “It was horrible. I was eating like 12 Hot Pockets a day at that point. I was so sick of them.” With the huge Oscar buzz this film is getting, no doubt the carb intense diet was worth it!

Noomi Rapace scored the coveted role of Lisbeth for the best-selling film adaption of The Girl with the Dragon Tattoo. Chatting to British talk show host Graham Norton, the actress revealed that she decided early on in her career to never let her personal vanity come in the way of a role. Taking her art so seriously, Noomi got most of the piercings required for the role, but drew the line when it came to the tattoos!

Aussie actress Margot Robbie looked unrecognisable in her get-up for her role as super-villain Harley Quinn in the highly-anticipated Suicide Squad

Believe it or not, that’s popstar Justin Timberlake dressed as a human lime, for a Tequila advertisement for Sauza 901 – a company that the popstar has a high stake in.

Jim Carrey was sporting a whole new look for his role as The Hermit in The Bad Batch.

Brad Pitt looked more like Grandpa Pitt on the set of his 2015 movie The Big Short while filming in New Orleans.

Maggie Smith eschewed the glamourous attire of the well-to-do Dowager Countess of Downton Abbey to play the eponymous down-at-hill character in The Lady in the Van seen filming in London.

From Rhonda to Rinehart: Mandy McElhinney underwent a total transformation for her role as Gina Rinehart in TV mini-series The House of Hancock.