It's been a rough road for the former High School Musical star. His films recently haven't exactly been praised by critics but it seems like he's getting a big break after being cast in the remake of Baywatch. But while shooting for an iconic scene (the group running seductively on the beach) Zac stumbles quite painfully. And while we're not sure if it's for a comedic purpose or not - it's not something we'd wish for the actor to happen again.