Behind-The-Scenes Stories Of Working With Sondheim : Fresh Air James Lapine collaborated with Stephen Sondheim to create three musicals — 'Sunday in the Park with George,' 'Into the Woods,' and 'Passion.' "We're very, very different," Lapine says. "I tend to jump into the deep end of things and figure out how to swim. And Steve is very analytical and doesn't start writing until he knows exactly where he's going." Lapine has written a new book about the making-of 'Sunday in the Park' called 'Putting it Together.' It's based on Lapine's memories, as well as interviews with Sondheim, and members of the cast and crew.