Efron And De Niro Unite For "Dirty Grandpa"

Zac Efron did a mean Robert De Niro from Taxi Driver in this summer’s comedy hit Neighbors, now THR reports that the duo will share the screen for the comedy "Driving Dick Kelly" aka Dirty Grandpa 

The story follows a young man (Efron) who, just before his wedding, gets tricked by his perverted grandpa (De Niro) to go on a road trip to Florida for spring break. The grandfather, a former U.S. Army General, tries to prove to his grandson that he is about to marry the wrong woman.

Dan Mazer, who co-wrote the scripts for Sacha Baron Cohen's Borat and The Dictator, is directing from a script by John Phillips,

Barry Josephson is producing the film. The project will be shopped around at the Toronto International Film Festival.