Relativity Media has released the first trailer for Joseph Gordon-Levitt’s directorial debut Don Jon.  Gordon-Levitt stars in the comedy as a contemporary, porn-addicted Don Juan-type who attempts to reform himself.  I caught the film at Sundance and it's really funny and marks the start of what looks to be a very, very promising directorial career for Gordon-Levitt.  This trailer does a great job of conveying the film's tone and the style that Gordon-Levitt has crafted, as quick editing, music, and repetition are used frequently to present some of the film's situations, especially with regards to the porn.  While the trailer does give away a couple of the pic's best comedic surprises (like the cameos), there's also a sweet sincerity to Don Jon that's only hinted at here, and the performances from Gordon-Levitt, Johansson, Moore, and Danza are all top-notch.  I expect the film will be a major crowd-pleaser when it hits theaters later this year.

Hit the jump to watch the trailer, click here to read Matt’s review of the film from Sundance, and click here for Steve's interview with Gordon-Levitt and the cast.  The pic also stars Scarlett Johansson, Julianne Moore, Tony Danza, Jeremy Luke, Rob Brown, and Brie Larson.  Don Jon opens on October 18th.

Click over to Apple to watch in HD.

Here's the official synopsis for Don Jon:

Jon Martello (Joseph Gordon-Levitt) is a strong, handsome, good old-fashioned guy. His buddies call him Don Jon due to his ability to "pull" a different woman every weekend, but even the finest fling doesn't compare to the bliss he finds alone in front of the computer watching pornography. Barbara Sugarman (Scarlett Johansson) is a bright, beautiful, good old-fashioned girl. Raised on romantic Hollywood movies, she's determined to find her Prince Charming and ride off into the sunset. Wrestling with good old-fashioned expectations of the opposite sex, Jon and Barbara struggle against a media culture full of false fantasies to try and find true intimacy in this unexpected comedy written and directed by Joseph Gordon-Levitt.