Shirtless Zac Efron (And Robert De Niro) Slay In This Exclusive Poster From 'Dirty Grandpa'

Zac Efron and Robert De Niro put their abs on display in the latest poster for "Dirty Grandpa."

Zac Efron And Robert De Niro ‘Party Till They’re Pregnant’ In New ‘Dirty Grandpa’ Trailer

Zac Efron and Robert De Niro get wild at Spring Break in the raunchy new "Dirty Grandpa" trailer.