"The parallels are hard to miss. In 'Primer,' a pair of moonlighting hardware engineers build a time machine in a garage out of bits and pieces of scrounged material. At one point they even consider dismantling the refrigerator for the Freon and copper tubing. Shane Carruth, 31, the film's director, co-star, editor, continuity boy and just about everything else, spent all of $7,000 on 'Primer,'" Polly Shulman speaks with Carruth in the New York Times.