Katy Perry blames world tour, surging career for split with Brand

Katy Perry is finally talking about her split with Russell Brand, and she's not pointing any fingers, more or less.

In her new movie, "Part of Me," Perry says the biggest strain on their marriage, which all but ended when he filed for divorce six months ago, was her packed touring schedule, with Perry using her rare days off to take trips to see Brand.

In one scene, People reports, Perry is seen sobbing uncontrollably backstage just before her show. Eventually, she rallies. "Start time," she says before hitting the stage.

And it didn't help, she says, that her career was taking off.

"I thought to myself, 'When I find that person that's going to be my life partner, I won't ever have to choose (between the partner and my career) ... they won't be threatened or have weird motives," Perry says. "Then I started to realize, that's not true. That fairytale I had is not true for me right now."

She also says the last thing she wanted was for the marriage to unravel.

"I have that same belief system with everything, from career to my life to my personal life, everything," she says. "And I will do everything it takes to not fail. And I did everything it took but it still failed."

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But what about the 15th?

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