It's strange: We leave the movie having enjoyed its conclusion so much that we almost forgot our earlier reservations. But they were there, and they … - Roger Ebert

The movie delights me with its cocky confidence that the audience can keep up. Primer is a film for nerds, geeks, brainiacs, Academic Decathlon winners, programmers, philosophers and the kinds of people who have made it this far into the review. It will surely be hated by those who 'go to the movies to be entertained', and embraced and debated by others, who will find it entertains the parts the others do not reach.

Some of the acting is better than the film deserves. Make that all of the acting. Actually, the film stock itself is better than the film deserves. You know when sometimes a film catches fire inside a projector? If it happened with this one, I suspect the audience might cheer.

The movie cheerfully offends all civilized notions of taste, decorum, manners and hygiene... is the movie vulgar? Vulgarity is when we don't laugh. When we laugh, it's merely human nature.