Natalie Portman was a Harvard student (2003) during the shoot, and is a friend of the filmmakers. Several of her Harvard pals appeared in the film.
The movie got the greenlight from Ben Affleck, who donated the "Glidecam" digital camcorder used in the production.
The movie was shot in 2002 in and around Harvard University. Some scenes were filmed in the little-known network of underground tunnels that link Harvard buildings and residences.
Cast and crew often hid out at locations in order to film secretively during night hours.