Catfish is a 2010 American documentary film directed by Henry Joost and Ariel Schulman, involving a young man, Nev, being filmed by his brother and friend, co-directors Ariel and Henry, as he builds a romantic relationship with a young woman on the social networking website Facebook. The film was a critical and commercial success. It led to an MTV reality TV series, "".
Filming for the film Catfish wrapped in 2009. 
If the movie came out in 2010, the filming may have finished the year of, year before, or even several years before, depending on how long editing took. I think the system read "2009" in my statement but "2010" in the context and saw that as a contradiction. 