I really only bought it because of the fact that Karen and Johnny were in it, I would have totally bipassed it in Blockbuster but I happened to see Johnny's name then Karen :) I will rent any movie I find with Power Raners in it ;)
I've bought it cause Johnny's in it (I'm a Trigun /Wolf's Rain/Eyeshine fan)....and I never even knew he was in MMPR so that's irrelevent 2 me!
(Did the same before with a vampire movie called 'Cold Hearts' - Amy Jo Johnson was in that and I didn't know her from anything else.) Was a good movie too.