I listen to /filmcast and filmspotting every week. They are movie podcasts. I also enjoy Slate Spoilers which is a discussion podcast where they spoil the movies, but they don't do one every week.
I use to listen the The Satellite Sister and Chaos Chronicles, but I don't listen to them as much anymore.
I want to start listening to the Tobolowsky Files, but I haven't gotten them downloaded yet.