Source: Variety

In addition to Robin Williams, Toni Collette, Sandra Oh, Rory Culkin and Joe Morton also star in the pic, which is now in production with "The Business of Strangers" helmer Patrick Stettner directing.

The film tells the story of a popular radio show host who, while trying to cope with a splintering romance, strikes up a telephone relationship with his biggest fan. When disturbing questions arise regarding the boy's identity, his life spins out of control.

Cannavale, who will be seen in Lions Gate Films' "Happy Endings" and United Artists' "Romance and Cigarettes," starred alongside Peter Dinklage and Patricia Clarkson in "The Station Agent."

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