Variety reports that Deborah Reinisch has acquired the rights for a film of the work, which concerns a brother and sister and their childhood friend. Reinisch will produce and direct the film based on an adaptation written by playwright Greenberg. There has been no announcement whether any members from the current Broadway company — Julia Roberts, Paul Rudd and Bradley Cooper — will repeat their roles on screen.

A film of Three Days of Rain would mark Reinisch's second project with Greenberg. The producer previously directed Greenberg's "Ask Me Again" for the "American Playhouse" series on PBS.

In the current Broadway production of Three Days of Rain, Roberts plays Nan, the practical sister of the erratic Walker (Rudd). The two are the children of a famous architect, who was business partners with the father of their longtime friend, Pip (Cooper), the play's third character. The first act finds the three, all somewhat estranged from one another, trying to dope out a journal left behind by Nan and Walker's dad, particularly the mysterious entry "three days of rain." In the second act, the time frame shirts back in time a few decades and the three play the parents of the first-act characters (in Roberts' case, a vivacious and unstable Southern belle).

Three Days of Rain was first produced Off-Broadway at Manhattan Theatre Club in 1997, with Patricia Clarkson in the Roberts role, John Slattery as Walker and another Bradley—Whitford—as Pip. It was a nominee for the Pulitzer Prize.

The Broadway Three Days of Rain is scheduled to conclude its limited 12-week engagement June 18.