Undercurrent (1946)

After a rapid engagement, a dowdy daughter of a chemist weds an industrialist, knowing little of his family or past. He transforms her into an elegant society wife, but becomes enraged whenever she asks about Michael, his mysterious long-lost brother.

Directed by: Vincente Minnelli

Starring: Katharine Hepburn, Robert Taylor, Robert Mitchum, Edmund Gwenn, Marjorie Main, Jayne Meadows

Links: Metro-Goldwyn-Mayer, IMDb, Movie posters, Movie stills