DIRTY GRANDPA (unrated)

(2016) Jason Kelly (Zac Efron) is a young, straitlaced corporate attorney working at his father's firm.  His life is stable, and he's about to marry a beautiful, wealthy girl from a good family, Meredith (Julianne Hough).  When his grandmother passes away, it's Jason who is tasked with driving his newly-widowed grandpa, Dick Kelly (Robert De Niro) down to Florida, due to Grandpa's driver license being suspended, just a week before he and Meredith are supposed to marry; it seems Grandpa and Jason were really close once upon a time, the older man's youthful spirit and energy keeping up with his grandson easily, but it was Jason who - as he got into college and his dad's business - got all serious and "old".  Grandpa, it seems, also wants a bonding trip.  What Jason doesn't account for is that Grandpa Dick is completely off the rails, randier than ever - and from spring break to a pair of lovely young ladies (one with a granddaddy complex) to a raggedy male drug dealer named Pam (Jason Mantzoukas), it might just be Jason who learns more about life from the old man.  Dirty Grandpa (and I saw the unrated version, to boot) is crass, vulgar, loud, over-the-top ... and on more than a couple occasions very, very funny.  I haven't liked much of what Efron has done lately, but I really enjoyed the fearlessness and sheer lunacy of this film.  Granted, any movie that makes every effort to get Zac Efron naked as possible also gets my vote; but by the end, to me, there was something that made Dirty Grandpa a better than the average stoner comedy.  Maybe De Niro, maybe not; I just know I laughed a lot, and was kind of sorry to let the characters go when the credits started to roll.  (unrated version)  7/10 stars