A familiar face in "King Arthur: Legend of the Sword" looks decidedly unfamiliar.

Soccer star David Beckham makes his acting debut in the film, but if you didn't know to look for him, you might miss him altogether. As we can see in a new clip released by Warner Bros. Tuesday, he barely looks like himself. The retired athlete underwent some serious Hollywood makeup magic to go from one-time People's Sexiest Man Alive awardee to battle-worn medieval man.

Beckham's temporary look is on full display in the clip. With a face full of scars and yellowed teeth, he watches as Arthur (Charlie Hunnam) approaches the stone to attempt to pull out the sword Excalibur. He is none too impressed with the future king at first -- but he probably soon comes to regret his insults.

The scene shows Beckham's prosthetic scars, but Beckham offered a even better look in a photo he posted on Instagram in late March.

Rough day at the office @kingarthurmovie @guyritchie

A post shared by David Beckham (@davidbeckham) on

How's that for a transformation?

"King Arthur: Legend of the Sword" opens May 12.