Amy Winehouse

seeing david bowie walking upside down is worth the price of the whole movie, not to mention jim henson's putting his creations to awesome.
 
Not to mention the single most awesome creation in the whole of the movie: the bog of eternal stench, and the single most awesome line in the whole movie: "Sure -- rocks friends" followed by the second most awesome line in the whole movie, "SMELL BAAAAAD!" :D