Then — poof! — she got out of the ingénue business and, for all practical and visible purposes, dropped off the side of the stage while she was still ahead of the game.

In truth, Pamela Hall only relocated behind the footlights and became a director.

Two of her efforts are now on display: the year-old Danny and Sylvia, with Brian Childers and Kimberly Faye Greenberg, and the just-installed Dietrich and Chevalier, with Jodi Stevens and Robert Cuccioli. Both are twinkling 'n' shining under the same roof — St. Luke’s Theatre (308 W. 46th) — and there’s still time and space left for My Big Gay Italian Wedding, which she had nothing to do with.

The first chronicles the rocky marriage of Danny Kaye and his lyricist-manager-wife, Sylvia Fine, on Saturdays at 5 and Tuesdays at 8. The second follows the equally rocky romance of Marlene Dietrich and Maurice Chevalier on matinee days (Wednesdays, Saturdays and Sundays) at 2 PM and on Sundays at 7 PM. My Big Gay Italian Wedding plays the remainder: Wednesdays through Saturdays at 8.

— Harry Haun