Bill and Ted's Excellent Adventure
So, I finally stopped putting it off, or gave in, or whatever, and watched this movie. It was pretty good, and although the main characters are supposed to be idiots, it was done more intelligently than I expected. They avoid the flaw of everyone throughout history and the planet speaks English, and later on in the movie they start toying with how the ability to time travel can be manipulated to various advantages and essentially problem solving, even within the confines set of time moving along in their anchor period at the same rate.
So, good times.