Last Action Hero (VHS | DVD) - Arnold at his self-depreciating best. You get gratuitous catch phrases, danny de vito as the voice of a cartoon cat and a wonderful Bergman homage.
Hudson Hawk (VHS | DVD) - Bruce Willis as a singing cat burglar. It is really a hell of a lot better than that makes it sound. High points include the Pope watching Mr. Ed, a ball chomping dog and learning what Italian security guards eat for lunch.
The Chase (VHS) - Charlie Sheen, in a comic masterpiece that is not available on DVD, stars in an epic road movie that lets us into the psyche of a troubled young man. Wrongly accused of a crime, he goes on the lam by carjacking Kristy Swanson. Antics include Henry Rollins as a cop being filmed for "COPS", Anthony Keidis and Flea as morons with a monster truck and a demonstration of how to use a car lighter as a weapon. Did I mention Kristy Swanson is in this?
I have found it helpful to do the stretching exercises my physical therapist recommends. Do some core strengthening exercises, such as the ones highlighted at The Mayo Clinic. By keeping your core strong, your back won't put itself in a position to cause that sciatica pain you are having.