There's even talk of a second novel, and Graham owes it all to Diane Keaton.

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Over the course of her remarkable career, Diane Keaton has been an actress to love, pretty much unconditionally.

WSJ: Keaton Turns Formula Into Feeling

The main characters, Larry and Carol Lipton (Allen and Diane Keaton), suspect that their across-the-hall neighbor has killed his wife, and try to play detective.

NEWYORKER: Manhattan Murder Mystery

"Wedding Banned" was planned as a romantic comedy about a divorced couple who try to stop their daughter from getting hitched, starring Robin Williams, Anna Faris, and Diane Keaton.

WSJ: Foreign Viewers Shape U.S. Films