Zac Efron & Zoey Deutch Get 'Dirty' on Set!

Zac Efron shows off his boyish good looks before filming some scenes for Dirty Grandpa on Friday morning (January 16) in Marietta, GA.

The 27-year-old actor was joined on set by his co-star Robert DeNiro for a day of filming.

PHOTOS: Check out the latest pics of Zac Efron

The day before, Zac‘s other co-stars Zoey Deutch and Aubrey Plaza stayed warm in long, puffy jackets while on set.

Dirty Grandpa follows an uptight guy who is tricked into driving his perverted grandfather to Florida for spring break right before his wedding.

20+ pictures inside of Zac Efron and the rest of the cast getting to work…