By no stretch of the imagination is Mark Ravenhill a great actor. When I first saw this show, in 2005, he couldn't carry it. But he and the show have evolved. In this new version - about a would-be movie director pitching a post-9/11 film to the leading lady he needs to attach to the project if it is ever to go ahead - Ravenhill is well cast and directed. I like his walk: sometimes Ravenhill's James struts like a turkey, on occasion he swings across stage with the loose-limbed gait of a chimpanzee, and at others he simply looks like a lamb in the queue for slaughter. Sometimes he fills his suit and sometimes it looks as if it is four sizes too big for him.
James is a man who plays out everything in his head like a movie. He is self-consciously aware of the effect he has, but he also unconsciously betrays himself. He lets his desperation show - a bad mistake when you've got something to sell and it's a buyer's market. Jo Lobban's film star Olivia sits like a beautiful, disdainful bird of prey, distant, watchful, ready to take flight.
Product is about selling and power: the power of the market place, the power of the images the Hollywood dream factory churns, the power to manipulate the individual and the masses, the power to romanticise things, even al-Qaida and 80% burns.
Product is not a big show, but its satire looks heavyweight next to Stewart Lee's What Would Judas Do? Lee offers up Judas as an ordinary bloke, just like Stewart Lee. It is engaging because Lee is an engaging performer, but the actor is always getting in the way of the character who wants to put his side of the whole Jesus debacle. Judas did what he did to keep the revolution on course and because Jesus needed him to betray him. Unreliable narrator or misunderstood nice guy? You choose.
· Until February 3. Box office: 020-7610 4224.