I think its a great concept when you can put a time travel device in a car or a plane, but unless the script is easy to follow, or you already have a basic grasp of quantum realities, the movie is likely not going to make sense. The sequencing on this movie is a bit off and awkward to follow as our hero, skinny and geeky as he is, he's still the hero, tries to commercialize his time machine only to have the future later when an opportunist destroys the future. An interesting movie, even as an early vehicle for Lisa Kudrow, the script runs roughly and well in places, but bogs down mostly in the area of credibility, likeability and in the field of quantum mechanic. I'd explain what I mean, but that would give away the ending. Overall, I rate this movie a seven.