Zac Efron Is Shirtless & Sandy for This 'Dirty Grandpa' Poster!

Zac Efron sits shirtless and confused amid some beer bottles in this brand new poster for Dirty Grandpa!
The film released a bunch of new posters featuring Zac and his co-star Robert de Niro, all of which you can check out below.
Here’s a synopsis of the film: Right before his wedding, an uptight guy is tricked into driving his grandfather, a perverted former Army general, to Florida for spring break.
Zoey Deutch, Aubrey Plaza, Julianne Hough, and more star in the film, which is currently