From the comedy minds that brought you Borat and Ali G [director Dan Mazer] and Bad Santa 2 [writer John Phillips], comes DIRTY GRANDPA . When the straight-laced Jason [ Zac Efron ] is tricked into driving his foul-mouthed grandfather, Dick [ Robert De Niro ], to Daytona for spring break, all bets are off in this hilarious new comedy. Julianne Hough, Aubrey Plaza, Dermot Mulroney and Adam Pally also co-star. Check out the new Red Band Trailer for even more antics from DIRTY GRANDPA, coming to theaters January 2016! Jason Kelly [Zac Efron] is one week away from marrying his boss’s uber-controlling daughter, putting him on the fast track for a partnership at the law firm. However, when the straight-laced Jason is tricked into driving his foul-mouthed grandfather, Dick [Robert De Niro], to Daytona for spring break, his pending nuptials are suddenly in jeopardy. Between riotous frat parties, bar fights, and an epic night of karaoke, Dick is on a quest to live his life to the ful