Complex sentence: The film took the two plays and opened it up for a screenplay that introduced some new parts, and stars Rita Hayworth, Deborah Kerr, David Niven, Wendy Hiller, Burt Lancaster and May Hallatt, who already played Miss Meacham on stage.
Split into simpler sentences: The film took the two plays and opened it up for a screenplay that introduced some new parts. It stars Rita Hayworth, Deborah Kerr, David Niven, Wendy Hiller, Burt Lancaster and May Hallatt, who already played Miss Meacham on stage.