(On DVD, May 2007) Every so often, it’s a treat to find out a little-regarded film that actually manages to deliver a better-than-expected performance. Coming from Adam Sandler’s “Happy Madison” production house, no one really expected nothing from Grandma’s Boy, and indeed it doesn’t deliver much. But it manages to be a decently entertaining stoner comedy, and that’s not too bad considering the material it had to work with. (The film’s comic highlight is a vacuuming scene.) Fratboy comedies can be painful to watch, but this one isn’t too bad as long as the concept of stoned elderly women can manage to get a smile out of you. The look inside the universe of video-game designers is good for a giggle or two, and the pacing of the film leaves little room for boredom. There are better choices out there, but this is still a way above the bottom of the barrel.