Zac Efron Strips Down to Reveal His Buff Body Onstage and Accidentally "Smokes Crack" in Wild Dirty Grandpa Trailer

Robert De Niro and Julianne Hough star in the raunchy comedy, in theaters on January 22, 2016

By Zach Johnson Oct 28, 2015 5:48 PMTags

Dirty Grandpa lives up to its title.

Lionsgate released the first trailer for the upcoming comedy Dirty Grandpa Wednesday. The movie follows foulmouthed Grandpa Dick (Robert De Niro) and his straight-laced grandson Jason (Zac Efron) during their road trip from Atlanta to a retirement community in Boca Raton, Fla. Jason's last-minute trip doesn't sit well with his controlling fiancée (Julianne Hough), who can't believe that he would leave her to finalize wedding plans just days before their nuptials. Meanwhile, Dick does everything he can to get Jason to loosen up—and boy, does he succeed.

The borderline NSFW trailer shows Jason stripping and flexing onstage, partying at a fraternity house and accidentally experimenting with drugs. "I just smoked crack?" he asks a partygoer. After the high hits, he yells, "I just smoked crack!"

Dick gets into plenty of trouble too, despite being a recent widower. In fact, Aubrey Plaza's character Lenore openly flirts with Dick and later seduces him in bed.

Dirty Grandpa, directed by Dan Mazur, hits theaters on Jan. 22, 2016. It stars Zoey Deutch, Jason Mantzoukas, Dermot Mulroney, Adam Pally and Jake Picking.

The first trailer debuted on BuzzFeed Wednesday.

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