In a Broadway season that might be remembered for a lovely, pared-down minimalism – the intriguing starkness of A Doll’s House with Jessica Chastain, the less-is-more near-concert-style presentations of Into the Woods and Parade – director Thomas Kail’s Sweeney Todd: The Demon Barber of Fleet Street will stand out for, among many other attributes, its full-on, unabashed ambition. A prodigious theatrical event that aims for greatness and achieves it, this revival of the Stephen Sondheim-Hugh Wheeler masterpiece is not to be missed.