Hugh Jackman at the 2024 US Open, and a behind-the-scenes photo of him shirtless as Wolverine.Jean Catuffe/GC Images/Getty Images/Marvel Studios/Disney Actors often go to drastic lengths to change their physiques for roles. But getting so lean can involve strict diets and working out can become like a full-time job. Hugh Jackman, Zac Efron, and Kumail Nanjani have spoken out about how hard it can be. One of the talking points around huge comic book movies and Oscar-baiting dramas is often around how much weight an actor has gained or lost to bring their character to life.Many stars see it as a dedication to their craft, that they feel like they have to physically look a certain way to embody a character or a person to the best of their ability.