Adam Sandler is nothing if not loyal. You can tell by the group of pals who appear in all his films. So when his Happy Madison Productions launched in 1999, it was fitting that its first film, “Deuce Bigalow: Male Gigolo” starred buddy Rob Schneider. Either that, or Sandler took one look at Rob’s script and said, “I’m not doing it. You do it.” Anyway, Schneider’s a lowly aquarium technician who gets in a financial bind and resorts to man-whoring. Hijinks ensue. Typical of Sandler-style comedy, the intended big laughs are all cringeworthy while the small asides are hilariously witty.