Musical: With a cast of characters that includes John Wilkes Booth and Lee Harvey Oswald — who played key parts in the deaths of Abraham Lincoln and John F. Kennedy respectively — Assassins is no ordinary musical. But Stephen Sondheim is no ordinary composer for the theatre. David Mealor directs this oblique history of the US for Flying Penguin Productions. Adelaide Festival Centre until December 15. Tickets: $ 27. Bookings: 131 246.