With director Tim Hill’s The War With Grandpa now playing in theaters, I recently got to speak with Robert De Niro, Laura Marano, and Oakes Fegley about making the family comedy. If you haven’t seen the trailers, the film deals with the ever increasing rivalry between sixth-grader Peter (Fegley) and his grandfather Ed (De Niro) after he moves in and takes over Peter's bedroom. In an attempt to get him out of his room and the house, Peter devises a series of increasingly elaborate pranks, but soon realizes he might be overmatched when his grandfather returns …