Gary Shandling is an Alien named HG99J-6 (or something) from a planet of men without sex organs... and he's come to Earth to pick up chicks.
Constant giggles in this one. The first half of the film is much funnier than the latter half -- Shandling's rapid-fire-and-inept pick-up lines are very funny (to every woman he meets: "Your footwear is very stylish... Would you like to have sex?") -- but the movie never quite runs out of steam. It threatens to run out of steam, but never quite does. Recommended.