Primer is an American science fiction drama movie. It is about friends who accidentally discover a way to time travel. The movie was released in 2004.
Shane Carruth, who made the movie by himself, also plays the starring role, because he could not find anyone else to do it. Some of his family members and friends are also in it. The only actor he hired was David Sullivan.
Primer has a confusing plot. The dialogue is difficult to understand. Carruth decided not to make the language simpler for the audience. The movie won the Grand Jury Prize at the 2004 Sundance Film Festival. It then played in a small number of theatres in the United States. It is also available on DVD. It is now popular as a cult movie. People still talk and write about how to figure out the plot.