She played the lead in a new play at London's Royal Court Theatre, home of the new wave of playwrights of the 1950s such as John Osborne and Harold Pinter. This led to other stage performances, such as the musical "Valmouth" in 1959, the play "A Time to Laugh" (with Robert Morley and Ruth Gordon) in 1962, "Boots With Strawberry Jam" (with John Neville) in 1968, and eventually to her role as Julie La Verne in Wendy Toye's production of "Show Boat" at the Adelphi Theatre in London in 1971. "Show Boat" had its longest run to date in that London season with 910 performances staged.