The full Monty

There are two local actors in the cast of "Monty Python's Spamalot," so when you're not busy watching the shenanigans of King Arthur, Lady of the Lake, Sir Lancelot, and others, look for Sir Robin (played by James Beaman from Beverly) and ensemble member Angelina Mullins from Mansfield. The Tony-winning musical based on the film "Monty Python and the Holy Grail" features that hummable tune "Always Look on the Bright Side of Life." Tonight at 7 (Through Nov. 23). $27.50-$91. The Colonial Theatre, 106 Boylston St., Boston. 617-931-2787. www.broadwayacrossamerica.com/boston