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This time the actor is taking aim at hedge-fund billionaire-turned-film producer ("On the Road"), Arki Busson, who also happens to be Uma Thurman's boyfriend and baby daddy.
Apparently Baldwin is miffed at Busson after a trip to the Cannes Film Festival in which the actor was pitching an Iraq-set romance movie.
Baldwin was repeatedly told he couldn't get funding for the project, specifically by Busson who said it was because the "30 Rock" star is now considered a TV star, not a movie star.
The whole thing is documented in this month's HBO doc "Seduced and Abandoned" - an exploration of several interconnected subjects: The Cannes Film Festival, cinema art, money, glamor and death.
Baldwin retaliated with an epic insult rant against Busson as reported by TV Guide:
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Catfight!
Baldwin, who's launching an MSNBC talk show this month and recently appeared in Woody Allen's "Blue Jasmine," isn't fond of film studio execs, either.
"These are
But there is at least one person in Hollywood who Baldwin respects: Steven Spielberg.
"He owns his own f---ing studio," Baldwin says of the Dreamworks honcho. "He doesn't have to go to one of the douchebags from Warner Bros. and explain to them why his movie is marketable."