Robert DeNiro shows us that you can get turnt up at any age in his upcoming film, Dirty Grandpa. 

DeNiro plays a recently widowed elderly man that convinces his grandson, played by Zac Efron, to a road trip. While Efron's character, who always plays by the rules, agrees to drive his gramps around, he signs up for a trip that will not only get him to smoke crack and help his grandpa hook up with hot co-eds but also make him reconsider marrying his fiance, played by Julianne Hough.

Hitting theaters in January, the trailer for the film will surely make you LOL all day.