I am a big fan of A Christmas Story. We watched it a lot growing up. My favorite part is when his dad get the leg lamp. That cracks me up everytime I see the whole family react to it. It also showed me a tongue stuck to a frozen pole. You can't fake the terror that kid showed.
It was written and narrated by Jean Shepard, who is simply brilliant.
I just found out that there is a sequel! A Summer Story was made in 1995 and stars Charles Grodin and one of the Culkins. I am going to have to get a hold of that one.
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.