Stuart Little, the family musical currently being produced at the Circa '21 Dinner Playhouse, is a near-perfect melding of actors and material, a musical comedy so creative and ebullient that you are instructed to secure tickets even if you don't have any kids on hand to chaperone you. The show has the sweetness of spirit that E.B. White's beloved tale requires, but it's better enjoyed as an ingenious vaudeville entertainment; with little overt plotting to get in the way, Stuart Little gives audiences a bevy of delightful musical and comedy sketches, and even though some of the songs are humdrum, the presentation never is. Circa '21's production isn't just a topnotch family entertainment; it's a topnotch entertainment, period.