Fierstein, also represented on Broadway right now with the book for "Newsies, " spins his typical theatrical magic, teasing out from the movie both a love triangle and the pull-push of fathers and sons.
Disney, which is launching the Broadway musical "Newsies" this spring, won't forecast how long "Poppins" will stay on Broadway, though Mr. Schumacher says shows that have made it to five years typically go on for at least two more.