EXCLUSIVE: Terry Westlund, the imposter who's been posing as a studio teacher for more than a year, was kicked off the set of another movie today after the mother of the film's child star complained to the producers about him. "We let him go this morning," said Cecile Cinco, producer of Asomatous, a horror film shooting in Palmdale. Westlund's fraud was exposed by Deadline on Monday after he recently was fired as the studio teacher on the short film Gold Star after the…