If you search Google you can find a timeline chart that kind of explains things. Awesome movie.
I saw that movie many many years ago and was just WTF is going on. I really think I need to watch it again.
I assume you mean Primer. 's funny. Primer kinda belongs on the list just for the sci-fi nerdiness of it. But on the other hand, I wouldn't say it's very good as a movie. I imagine most humans would find it boring, confusing, and frustrating. You have to really want to geek out time travel issues to make it through the thing.
Then you have Starship Troopers, which is neither good sci-fi, nor a good movie.