"Urban Legends: Final Cut" takes one more stab at the long-lived slasher flick. The debut film of noted film editor and composer John Ottman ("The Usual Suspects"), "Urban Legends: Final Cut" culls elements from many of the more popular films that have diced and sliced their way across the genre. The movie is set in a film school, so it is extremely self-referential in the manner of the "Scream" movies, and the killer wears a demented mask, now the uniform of filmic psychopaths. Here, a budding filmmaker ("Stir of Echoes'" Jennifer Morrison) is competing against several ruthless classmates for the coveted "Hitchcock Award." Her bid for the prize is hampered when her cast and crew suddenly start getting hacked and slashed. "Urban Legends: Final Cut" offers all the gore but few of the laughs or chills of its more successful predecessors. Starring Jennifer Morrison, Matthew Davis, Joseph Lawrence, Anson Mount, Eva Mendez, Jessica Cauffiel, Anthony Anderson, Michael Bacall, Marco Hofschneider, Hart Bochner and Loretta Devine. Directed by John Ottman. Written by Silvio Horta, Paul Harris Boardman and Scott Derrickson. Produced by Gina Matthew, Michael McDonnell and Neal H. Moritz. A Columbia release. Horror/Thriller. Rated R for violence/gore, language and some sexuality. Running time: 100 min.