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EXCLUSIVE: It is the classic rags-to-riches tale, a homeless man who wins over America with his charming voice one day, and then the next day scores a movie role opposite Hollywood’s hottest property, Jack Nicholson.

But it is too good to be true – well, at least for now.

Despite the plethora of media reports that have already married the new Nicholson/Williams on-screen partnership, the writer/director of the film “Exit 102,” Peter Dobson, has assured us otherwise.

“It is absolutely not true, we made it very clear to Ted’s people that we would like to offer a role to him and we’re preparing to offer the lead to Jack next week, but at this stage nothing has happened and he is not attached,” Dobson told FOX411’s Pop Tarts exclusively on Friday.

But Williams apparently even told "Entertainment Tonight" that the “As Good As it Gets” star sought him out personally for the role.

"As a matter of fact, Jack Nicholson had contacted one of my in-laws who happens to be in Columbus, Ohio," Williams said. "They're supposed to be making a movie in which Jack is playing opposite a disc jockey, which he would like me to portray in the movie."

The former radio man may have spent the last chapter of his life on the streets due to drug and alcohol abuse, but has been clean for two years. And this week he shot to international superstardom as his “golden voice” became a YouTube sensation. http://www.youtube.com/watch?v=6rPFvLUWkzs&feature=player_embedded