Shia LaBeouf and Rosie Huntington-Whiteley Get Dirty on ‘Transformers’ Set (PHOTOS)

Show-biz isn’t always glamorous—not even for such pretty specimens as Shia LaBeouf and Rosie Huntington-Whiteley.

The Transformers 3 co-stars seriously roughed it on the Chicago set of the upcoming Michael Bay epic on Tuesday, crawling around in the rubble-strewn aftermath of what will no doubt be a spine-tingling action sequence. LaBeouf, in particular, seemed particularly affected by the proceedings, sporting several scrapes on that lovely mug of his.

Click through the photo gallery to see Shia and Rosie in action. And make sure to hit up Celebuzz’s Actors on Set gallery to see even more pics of Hollywood’s finest put in an honest day’s work.