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In TV and film, where I’ve had the bulk of my experience, the best moments of the day are edited together to create the best version of what you’ve captured. It’s a different art, with a different process. But when the curtain rises at 8:05 every night at the St. James, the audience is being treated to a ballet of moving parts as intricate as a pocket watch. Whether it’s the 19-piece orchestra under the stage, the crew in the wings or the 30 performers on top of it, the gears turn, the set spins and a tiny hidden smile creeps across my face. Zach Braff is an actor, writer and director. His new film, “Wish I Was Here,” opens July 18. A version of this article appears in print on March 23, 2014, on page AR6 of the New York edition with the headline: An Invisible Boy Keeps His Promise. Order Reprints|Today's Paper|Subscribe Most Emailed Au Revoir, Entrepreneurs 6. Fixes: Teaching Children to Calm Themselves HOUSE_OVERSIGHT_028526