Jared Leto is a very talented actor, but he chose to concentrate on being the frontman for his band, 30 Seconds to Mars. He accepted a challenging role in "Dallas Buyers Club" that has generated some Oscar buzz, but he reiterates he's not returning to acting.

In "Dallas.." he plays a transvestite inflicted with HIV. Just like most of the cast, he had to go on  a strict diet to look extremely thin and pale.

That does not mean he is not involved in film. He has directed 'Artifact' which is a documentary about his life with the band and the music industry in general.

His last acting gig was in 2009 in the sci-fi hit "Mr Nobody." In an interview with Indiewire, he shares what made him face the cameras again.

"I didn't have any plans to make another film.  We were touring the world with 30 Seconds to Mars, playing in front of twenty, thirty, sometimes a hundred thousand people a night, and it was incredible.  We were having the tour of a lifetime, and I got this script.  I hadn't read a script in a couple of years, but I read it and I fell in love.  I thought, what an incredible opportunity.  And though I hadn't made a film in six years, I had been close to film since I was making a lot of content, doing a lot of editing and directing and producing.  But I decided that it would be really interesting to make a film again, and this seemed like an incredible group of people that were all coming together to tell a really special and important story.  So I dug in deep and I made this film, and I'm really proud to be a part of it.  It was the role of a lifetime."

Does this mean he's not going to act anymore?

"I don't know.  If something as seductive came along, I would jump at the chance to have that opportunity.  But movies like this don't come along that often.  So we'll see."

His documentary about the band and his music career is entitled "Artifact." What's the story behind that?

"When I was making the film, I thought about gathering and collecting all of the elements of this period of our lives, capturing everything that was necessary to tell the story as an artifact of our lives."