http://www.johnhannah.net/sdoors.htmlSummary: Helen Quilley (Gwyneth Paltrow) gets fired from her PR job and runs to catch her train home. We see what would happen to her if she missed the train, and what would happen to her if she made it. If she makes the train, she meets the charming James (John Hannah) and catches her boyfriend Gerry (John Lynch) in bed with his ex-girlfriend, Lydia (Jeanne Tripplehorn). If she misses the train, she doesn't meet James, and Gerry's affair continues under her nose. The two Helens diverge dramatically as in one life, she finds a successful career, a new haircut, and a new boyfriend in James. The other Helen is left making sandwiches and waitressing to support Gerry, who is supposedly writing a novel (while really carrying on with Lydia). Will true love win out? What does Fate have in the cards for Helen? The movie is about how seemingly insignificant occurrences (like making or missing the subway) can dramatically change one's life.