Bruised & Bloody Zac Efron Sports Fringe Crop Top For 'Dirty Grandpa'

Zac Efron shows off his midriff in a crop top while shooting scenes for his upcoming film Dirty Grandpa at a police station on Monday (April 27) in Tybee Island, Ga.

The 27-year-old actor was joined for the scene by his co-star Robert De Niro, who walked a few feet behind.

PHOTOS: Check out the latest pics of Zac Efron

Zac just got back on the set of the film after enjoying an affectionate date with girlfriend Sami Miro at a karaoke bar last week.

10+ pictures inside of Zac Efron filming Dirty Grandpa in a crop top…