Primer is a complex thriller about the accidental discovery of time travel. Engineers Aaron and Abe stumble upon something incredible in their garage, leading them down a dangerous path of paradoxes and mistrust.
Made for $7,000 by an engineer. Two friends invent time travel and rapidly invent versions of themselves to control it. First watch: bewildering. Second watch with a flowchart: the most rigorous time-travel film ever made.
The movie's plot revolves around the accidental discovery of a means of time travel which leads to complex paradoxes.