It hasn't been the best week for Zac Efron [1]. News broke on Monday that the actor split from his girlfriend of nearly two years, Sami Miró [2], but even before that, Zac appeared to have a rough time on the set of the Baywatch movie [3]. While shooting a classic running-on-the-beach scene on Friday in Tybee Island, GA, a shirtless [4] Zac tripped and fell behind his costars Dwayne Johnson, Kelly Rohrbach, Ilfenesh Hadera, Alexandra Daddario, and Jon Bass. While it isn't clear if the fall was for real or a comedic stunt for a scene, one thing's for sure: it looked like it hurt.

Zac took to Instagram on Tuesday to poke fun at himself, making us think that his tumble wasn't part of the script; along with two photos of his fall, he gave a glimpse into his inner monologue during the unfortunate moment. Keep reading to see Zac biting it on the beach, then check out his hottest shirtless photos [5].