Before the screen, we had the stage. Scripts and stars, all ready to go - it's a no-brainer to bring them direct from the proscenium to the soundstage. And yet, because they are different mediums, and because studios have staff to be paid, the transition is rarely so direct - even when it's a Shakespeare adaptation. Here are seven films, some of which are practically word-for-word as they appeared on Broadway, most of them...not.