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Montana Fishburne tells she phoned her estranged dad Laurence after her adult film was released last week but -- surprise! -- he didn't want to talk to her.

According to Montana, 18, her dad said, "I'm not going to speak with you 'till you turn your life around."

Montana says Laurence also told her, "You embarrassed me."

According to Montana, Laurence said, "You used your last name. No one uses their real name in porn."

Her acclaimed actor-dad Laurence, 49, was nominated for an Oscar in 1994 (for What's Love Got to Do With It?), but Montana recently told she wasn't interested in following in his footsteps.

"I wasn't really into mainstream acting," she told Us. "People would ask me, 'Do you want to get into acting? Do you want to be an actress?' and I would say, straight up, 'No.'...I knew I wanted to do adult [films]."

Filming herself having sex on camera for the first time at age 18, she told Us, "I liked it. I was like, 'Wow, now I really want to do it. [I] just took it from there. I became really passionate after my first at-home video."