Mission to Moscow
She was given some decent roles in B films, "Busses Roar" (1942) and "The Mysterious Doctor" (1943), and had a small role in an expensive production, "Mission to Moscow" (1943), as Emlen Davies. This impressed Warners enough so when Joan Leslie was held up on "Rhapsody in Blue", Parker replaced her in a strong role in a prestige production, "Between Two Worlds" (1944), playing the suicidal wife of Paul Henreid's character.