Steven Spielberg is about to turn 75 years old. Since his debut feature in 1971, a full fifty years ago, he has tackled all manner of genre and subject matter, but never a musical. It makes sense then that his trademark skills –an iconic eye for composition and blocking, perfectly deployed single takes, finding the best cast for the story, and impeccable detail at every level– now all feel like he might have been refining specifically to make a musical because his new version of West Side Story makes excellent use of all of them.