Worst movie ever "Funny Games" not funny at all, even with all the stupid cliches and otherplayed parts its just too boring and annoying to be anything other than terrible. I believe that it is the 'worst' movie I have ever seen (and I've seen some shit movies). The whole movie consists of the director waving his middle finger at you and saying your all sickos for liking these types of movies.... which was ironic considering it was labeled as a horror thriller (lying money-grabbing dirtbag). If you want to see a movie that will make you want to hunt down and brutally murder the jackass who directed it, this is the movie for you.
The corniest movie I ever saw was "Lost Boys: The Tribe" .....god where do I begin its just so bad and corny you may get in a laugh but you'll also hate it.
The movie with best use of advertising would be "Mac and Me" one movie critic I once watched described it as E.T. with all the good sucked out and replaced with McDonalds, Coke, and Skittles. Kinda funny, mostly pathetic.
One of the only movies I just had to leave unfinished was "Crank 2" (never saw the first) its just soooo out there and extreme with the screwed up stuff that happens, you will have nightmares following you for the rest of your life if you watch this.
While I don't know anything about this personally, someone told me of a movie called "The Gingerdead Man" which is about, guess what, a murderous gingerbread man. Could be pretty funny..... or downright strange.
addon: Just checked online, the Gingerdead Man had some sequels among them "Gingerdead Man 2: Passion of the Crust"