Channing Tatum gave fans a personal look at some of his body transformations for several of his upcoming roles. On March 21, Tatum posted a series of mirror selfies on Instagram showing the fluctuation of his appearance based on characters he's portrayed.

Actress Renée Zellweger gained 30 pounds for Bridget Jones's Diary — twice. Matthew McConaughey lost nearly 50 pounds for Dallas Buyers Club and later told the BBC, "I gave myself four months... lost 3.5 pounds a week — like clockwork."