Ostensibly with a movie like Dirty Grandpa, it's Robert De Niro we should feel bad for. Here's a guy who was once the Greatest Actor of His Generation, who had some respite from his terrible recent filmography by teaming up with David O. Russell for the likes of Silver Linings Playbook and Joy. .
But it's not De Niro you should feel bad for in Dirty Grandpa, a movie so poorly made, you'll yearn for Meet the Fockers. De Niro has made his bed over the last decade or so making terrible movies where the sound of a cash register is almost part of the sound design.