Blake Lively plays a surfer in the 2016 shark attack movie The Shallows, but does she really surf in the movie? ... That happened. I wasn't supposed to crack my face underwater.

PIC: Blake Lively Hides Baby Bump in Gorgeous Cape Gown at the Met Gala "Doing the underwater sequences, I'm in 4.5-foot waves," she shares, describing some of her toughest days on set.

Blake Lively credits her training for The Shallows for losing her baby weight after daughter James. By. Julie Mazziotta. ... so it was just insane underwater stunts,” Lively, ...

RELATED VIDEO: Blake Lively Calls Out Post-Baby Body Shamers “That movie was an athletic event as much as it was an acting job because they didn’t hire a stunt double until the last two weeks ...