Malcolm McDowell is a warden who turns his prison into a profitable business in the comedy feature "Con Inc.," which shoots in Rome the end of July. . . . Lesley Ann Warren becomes bored with her husband and leaves him to become a country singer in the HBO film "Baja, California," to shoot in Texas. . . . Raquel Welch plays a college psychology professor who contacts a deadly disease and decides she doesn't want to live in "Right to Die," an NBC movie now shooting in town. . . . Lea Thompson and "Saturday Night Live" reg Victoria Jackson are women who meet stud Jerry Levine at a health club and get involved in "Casual Sex," a feature produced by Ivan Reitman now filming throughout the Southland. . . . Jill St. John guests as the ruthless wife of a studio head who plots the murder of her husband, then frames her stepson in an episode of the forthcoming NBC series "Starbuck," now filming in Vancouver. . . . Rock star Mick Fleetwood is the quintessential hippie and Buck Henry a very understanding father to son Bob Goldthwait, whose best friend is a talking horse, in "Hot to Trot," now shooting in L.A.