FALLING IN LOVE AGAIN . . .

Who’s that girl? Having assayed Marilyn Monroe and Judy Holliday, Madonna now says she’s ready to be the new “Blue Angel.” Actually, that’s not her idea. It’s from actress-turned-producer-director Diane Keaton.

A Keaton rep told us his star originated the idea of a re-make and bought rights to the original Josef von Sternberg film that launched Marlene Dietrich’s career in 1930. He said Keaton will co-produce with Joe Kelly and the film will be directed by Alan Parker (“Fame,” “Angel Heart”) from a script by Neil Jimenez (“River’s Edge”). The project is in development at 20th Century Fox, where it had been remade in 1959 with Curt Jurgens and May Britt.

Jimenez said that he’s been approached to do the screenplay but has yet to sign with Keaton. The new version would be set during the McCarthy Era at a U.S. naval base.

Said Jimenez: “I saw the original again recently and must say that it’s a classic only because of Dietrich. Basically, the first film is crudely constructed and suffers technically from the relative newness of the sound process.”