Jack Black has dropped out of the Todd Phillips-helmed comedy Man-Witch at Warner Bros, according to Variety.

The studio confirmed that Black will not star in the film, which centers on a man who discovers he's got witchlike abilities and ends up teaching little girl witches-in-training.

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An insider said conflict arose between the studio and Black's Endeavor agent, Sharon Sheinwold. Other sources attributed the parting of ways to bad blood between Phillips and Endeavor -- which Sheinwold recently joined after an ugly breakup with UTA. Phillips was the original director on Endeavor-repped Sacha Baron Cohen's "Borat" and shot scenes for the box office hit before being replaced by Larry Charles. Phillips eventually received co-writing credit on the film.

Warner Bros. said Man-Witch, which had a tentative January start date before Black disengaged, is moving forward on schedule.