What is the name of this movie? Its some parody about going back in time I think, more detail in the desc?

It was only a few years back no more then 4, I think it had two guys (also maby a girl) I believe they go back in time, or are already way back in time (no its not the movie year one) back to the Jurassic time because I remember the trailer showing them being chased by a t-rex and also something about a teridactl (i don't know how to spell its name) I think. So do you have any idea what the title of this movie is? Any guess's are appreciated :)