“Cynthia” (**1/2 out of four) was a sporadically amusing horror comedy about a suburban couple (Scout Taylor-Compton and Kyle Jones) and their increasingly desperate attempts to have a child which results in a monstrous abnormality. Starts to wear out towards the end and loses its way but until then provides enough off-the-wall humor and scares to keep things lively and entertaining. Cult actors Sid Haig and Robert LaSardo seem to be having fun in their best roles in years. Obviously inspired by “Rosemary’s Baby” and “Alien” but seems more directly inspired by Rob Zombie.