One that totally freaked me out when I was a teenager was called "Magic" (I think). It was about this ventriloquist and his dummy. The dummy started talking to the ventriloquist (or maybe the ventriloquist imagined it - like the dummy was his evil alter-ego or something). But anyway, the dummy starts telling the ventriloquist to kill people. I don't think my description does it justice, but it scared the crap out of me!! I think it starred Anthony Perkins (but I could be wrong).