Beyoncé Knowles has dropped out as the female lead of Warner Bros.' upcoming remake A Star Is Born, due to scheduling conflicts.

The singer/actress has been attached to the project for over a year, although the musical remake hasn't had much luck in finding a male lead to star alongside her. Insiders say that Beyoncé Knowles' schedule is too packed as it stands, and since the studio has not issued a production start date yet, she was forced to step away.

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Ironically, the production was forced to delay shooting last August when Beyoncé Knowles became pregnant. Production was originally scheduled to begin in February 2012, although the extra time still didn't help in finding a leading man. A-list actors such as Christian Bale, Leonardo DiCaprio, and Will Smith were approached to star, but deals were never solidified.

Clint Eastwood is directing from a screenplay by Will Fetters. The director has shown interest in Bradley Cooper for the male lead, although no official offer has been issued yet. The story centers on a rising singer who falls for an aging artist.