"Land of the Lost," with Will Ferrell
I didn't know till the movie came out in theaters that this was based on a TV show. I was even more worried when my parents told me that the show this was based on not only was stupid, but also wasn't even successful or popular back when it came out in the 70s. And worst of all, this film proves why Will Ferrell has only been in four good movies (the first two Austin Powers films, Talladega Nights, and Blades of Glory).
This movie takes every funny thing you can imagine and throws it out the window. It uses scatological humor (Will Ferrell gets pooped out of a T-Rex) and plain old stupid humor (Will Ferrell makes out with a primitive human). None of it is funny, and it involves his character creating a broken down looking device that sends him, another scientist and a general shop owner to the Land of the Lost, where past, present, and future are all mixed up. There Will Ferrell attempts to play action hero, fighting a T-Rex and reptile things called Sleestaks (and a tunic foreshadows the whole movie). So that's about it. Don't watch it, unless you want Jurasic Park combined with Back to the Future and a little bit of The Matrix with none of the awesomeness.