“Mr. Happy” (0 stars out of four) was a worthless horror story that looks like someone’s bad home movies about a family (Chase Spears, Lucas Spears, Mark Spears) who are besieged by the title character who wants to terrorize them and drive them crazy. Viewers who last to the end of this will likely no exactly how they feel, if they’re not already driven crazy by the amateurish handheld camerawork and patchwork editing. This was apparently a family affair since Mark Spears was the writer-director and co-star but the results aren’t likely to make him (or audiences) happy.