Valley of the Sun is extremely predictable, full of annoying horny-old-woman stereotypes that were boring 30 years ago on Golden Girls and are even more boring today; of mean, arrogant bullies vs decent folk; and just about every other tired cliché from every hackneyed TV drama and sitcom of the last 40 years.
Johnny Whitworth plays a thirtysomething LA porn star who for some unexplained reason goes nuts and then moves in with his parents in Arizona. He's shirtless and sweaty practically everywhere he goes in the old people's community where his parents live, and then he rolls his eyes and acts astonished when the old folks of both sexes and a neurotic young woman in a pharmacy paw at him. What a jerk, and what a stupid, annoying movie.
I don't know what planet the reviewers who praised it came from, but it's not one I want to visit. Beth Grant is fantastic, though, as she is in every single movie and television show she's ever appeared in. If this dumb, profoundly irritating movie is worth watching at all, it's for her and her only.