How we made West Side Story
'I wanted to be the first guy to use a four-letter word in a musical " but the line ended up as "krup you" instead'I was at a party with Arthur Laurents who was about to write a musical with Leonard Bernstein based on Romeo and Juliet. I asked who was doing the lyrics and he said: "Gosh, we've been thinking about that. We don't have anybody." Lenny wanted Comden and Green (Singin' in the Rain) but they were in Hollyw…