Zac Efron Cleans Up Nicely for 'Dirty Grandpa' Filming

Zac Efron looks a little nervous outside a faux nightclub while filming Dirty Grandpa on Thursday evening (January 29) in Atlanta, GA.

The 27-year-old actor shot a scene with his on-screen grandfather Robert De Niro where they kept their eyes closed and looked to have a moment of silence.

PHOTOS: Check out the latest pics of Zac Efron

In case you missed it, check out the cutest baby picture of “little ninja” Zac that his team posted to Twitter earlier this week as a #TBT.