Kim Kardashian breaks down in tears over Kanye West in an upcoming documentary about his turbulent life.

The new trailer for In Whose Name? reveals a rare glimpse of the former couple during a low moment. Kardashian, 44, can be heard crying, telling her ex-husband, "Your personality was not like this a few years ago."

In another scene, West, 48, tells his then-wife, "Never tell me I'm gonna wake up one day and have nothing."

When Kardashian replies, "We can talk about that later, but… ," West says: "It ain't no ‘but.'"

In Whose Name? hits theaters on September 19. The trailer for the doc was released on Wednesday, August 13, and shows West experiencing mental health issues during a six-year period.

According to a description via YouTube, filmmaker Nicolas Ballesteros

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