I watch Atlantis once every 10 years or so, and always go in with the lowest expectations because I know what a horrible reputation it has.  I watch it, expecting the worst, and I always come away with it having a good time.  But my favorite Pal film has got to be The Power.  I think the final images seared themselves into my brain at an impressionable age so I will also defend it.  If North by Northwest and Scanners had a baby, I think it would come out looking like The Power.