10 Actors Who Destroyed Themselves For Terrible Movies

The Bad Neighbours star wasn't exactly in the worst of shapes heading into the movie reboot of Baywatch, with Zac Efron still sporting a set of abs that wouldn't look out of place jogging alongside Dwayne Johnson on a beach in slow motion.

However, the actor still felt the need to take things up a level when preparing to spend a decent amount of time on-screen topless for the 2017 outing, dropping down to just 5% body fat for the role of Matt Brody.

But when looking back on the experience of going all-in on a freakishly strict diet and the eventual almost CGI-like end results, Efron would later claim that his physique throughout that shoot was "stupid". He'd also reveal last year that he began developing insomnia and "fell into a pretty bad depression", with this later being chalked up to taking too many diuretics in order to achieve the unrealistic look.

In the end, Efron seriously "messed something up" within his body for a flick that would eventually belly-flop critically and didn't exactly kickstart another lucrative franchise to add to The Rock's ever-growing list. And as the actor himself would confess, he's not exactly in a rush to dive into that sort of physical torture for a role again any time soon.