Linda Lovelace (Amanda Seyfried) was the most famous porn star and her movie “Deep Throat” was the biggest grossing XXX ever. This biopic starts with the passionate, wide-eyed, exciting version of her story, but switches halfway thru to reveal the truth: her husband (Peter Sarsgaard) pimped her out and abused her. This dark and unfortunate film has a strong cast (Sharon Stone & Robert Patrick have the most touching scenes as her parents) and lots of garish ’70s style. While it’s relentlessly cruel, it never conjures up much sympathy. It’s an over-the-top biopic that’s more instructional than emotional. (Criterion Cinema only)