Sundance is in full swing and the movie I keep hearing buzz about is the documentary Catfish. Toted as hilarious and heartbreaking, it’s about a photographer, Niv, her brother, Rel, his friend, Henry and the 8-year-old art fan they befriend online. The flick is a commentary on the digital age and the consequences of online relationships, and apparently it takes all sorts of unexpected turns. Keep it on your radar.