The slipperiness of truth and lies on the Internet gets played out in unexpected ways in the documentaryCatfish. When Nev Schulman receives a painting based on a photograph of his from an 8-year-old girl named Abby in Michigan, he doesn't realize this is going to lead to a long-distance romance with Abby's older sister Megan… and that this romance, conducted over the phone and the Internet, will lead to something far more troubling. It would be unfair to reveal more details ofCatfish, as the process of discovery is one of its pleasures--but even if you do know the sequence of events, the movie's ultimate reward is not the revelation of secrets but the surprising and very human interactions of the movie's last third. While there is a thriller aspect to the movie--and the suspense at points is indeed nail biting--the revelation isn't the bang that Hollywood movies lead you to expect. Instead,Catfishturns sad, unsettling, and sure to inspire arguments about motivations and human nature.--Bret Fetzer