You can find the trailer below (via Trailer Addict) for documentary Catfish, which was one of the most buzzed about films at this year’s Sundance Film Festival.

From all the reports, it appears to be a case of the less known about the film’s content, the better, but it’s a tale of how appearances can be deceptive in the online age, as filmmakers Ariel Schulman and Henry Joost follow the story of Ariel’s brother Nev after he receives an e-mail from a young girl who wants his permission to paint a portrait of him from a picture she’s seen in the web.

Catfish will make its UK screen debut at the BFI London Film Festival this month, before going on general release on 17th December.