Robert De Niro and Zac Efron Expose All Their Outrageous Road Trip Antics in the New Unrated Version Arriving on Blu-ray™ Combo Pack, DVD and On Demand May 17 from Lionsgate Laugh out loud with dynamic duo Oscar® winner Robert De Niro (Raging Bull, Best Actor, 1980) and Zac Efron (Neighbors) as the two take the spring break of a lifetime in Dirty Grandpa , arriving on a revealing Unrated Blu-ray Combo Pack (plus Digital HD), DVD (plus Digital) and On Demand May 17 from Lionsgate. The dirtier unrated cut also arrives on Digital HD April 26. The laugh-out-loud comedy also stars Aubrey Plaza (TV’s “Parks and Recreation”), Zoey Deutch (Vampire Academy), Julianne Hough (TV’s “Dancing with the Stars”), Jason Mantzoukas (Neighbors), Danny Glover (Lethal Weapon) and Dermot Mulroney (August: Osage County). Being bad has never felt so good as Robert De Niro and Zac Efron get down and dirtier in this outrageously funny unrated version of Dirty Grandpa! Uptight Jason (Efron) is a week aw