Why all the negative reviews based upon the lack of factual accuracy in this movie? Did Hello Dolly really sing along with Walter Matthau, or how about 'Don't call me Shirley . . .' What's 'wrong' with ridiculous when it comes to totally fictional movies whose sole purpose is to entertain and not inform. The Kirk Douglas movie had a big budget and was meant to be taken a little more seriously, but if time travel is a fact then I missed it in physics class :) Point is, if you base an entire movie on what is currently a totally fictional premise why do you need to get other scientific 'facts' straight before the movie can be enjoyable. How many movies are based on the Zombie Loonies Threaten The Earth? Have you seen many real zombies kicking around the streets lately - and no, I'm not talking about politicians so you can't count them okay:) It was obvious that the director was on a restricted budget (it is a B movie after all) and wasn't going for realism, rather he made an entertaining somewhat tongue-in-cheek movie. Not the best acting in the world, not the best of anything, but like so many other movies it was a decent entertaining watch none the less. I didn't consider my time wasted at all but then I like Sci-Fi anything and especially time travel movies even if they are, or sometimes especially if they are in the B movie class. 5 stars from me.