“According to an Actors’ Equity Assn. spokesperson, there are roughly 79 theaters in Los Angeles that use one form of equity contract or another, a number that doesn’t include any big sit-down productions or the 40 or so theaters that sometimes use an Equity member or a guest artist or special appearance contract. Nor does it include the huge number of 99-seat productions each year (verging around 1,000, was the estimate).”