PARK CITY, UTAH - "Don Jon's Addiction" is just one of several films at the 2013 Sundance Film Festival with  firmly sexual scenarios at its center; it joins other films like "Lovelace," "Interior. Leather Bar" and "Kink" in the lineup. But as writer, director and star of "Don Jon's," Joseph Gordon-Levitt told HitFix he had a larger picture in mind, beyond his character's addiction to porn.

"I wanted to tell a story about love... people objectifying each other," he said of his film.

"Don Jon's" boasts other talent like love interest Scarlett Johansson and Julianne Moore, who wished to remain mum on the topic of her character on the red carpet.  But Gordon-Levitt further explains the idea of objectification, and how it turns into a comedy. "My character watches a lot of porn. Scarlett's character watches a lot of romantic Hollywood movies. I think all that stuff is hilarious."

Because to the "Looper" actor, rom-coms  are porn in a way, too.

Moore said the script was "beautifully written," even for subject matter that's "pretty intense,"

"Joe always talks about people who objectify... each other, what kind of distance that creates," she said. "I found the film incredibly touching."

Watch the complete interview above.

"Don Jon's Addiction" is Gordon-Levitt's first time directing a feature film, though he has previously premiered shorts at Sundance. The movie premiered last night (Jan. 18).