I did watch the whole thing once, way back, but ever since I've only watched the Rick scenes every once in a while.
It's so awful it's not even funny. ;) And wtf is with the singing/music?
I agree it may have possibly worked better as a series, but I don't think it would've been very successful.
Maybe Rick knew what was good for him and didn't want to return. ;) Can't say I blame him.