Can you help me name this parody movie?

It is basically a movie parodying many hit movies including willy wonka and the chocolate factory, harry potter, Narnia, amongst many others. My parents saw it the other night on tv and started to describe it those parts to me and now i really want to see it. It basically has little snippets of movies but they are parodies and are all linked together the willy wonka section included a part where wonka knocked off one of the kids heads into a pool of yellow candy coating and takes it out and puts it into a giant box of lemon heads, it sounded hilarious.