Diana Thater: Between Science and Magic Making a movie about movie magic is not the same as making some of that magic. This exhibition goes so far out of its way to extinguish the magic that you can't help but wonder why it was brought up in the first place. The answer is that Thater's brand of art is opposed to all forms of entertainment, which it sets itself apart from. Over the last 20 years, the relationship between art and entertainment has become increasingly cozy. This has forced fourth- and fifth-generation Conceptual artists like Thater to shore up the fiction that their own work is not a form of entertainment by evoking the pleasures of such amusements and simultaneously distancing themselves from them. Dreary seriousness is regularly served up as proof that art's job is to pursue Truth and that nothing as silly as entertainment is to get in the way. Pleasure, surprise and insight are pushed out of the picture, never mind fun or comfort (D.P.). Santa Monica Museum of Art, Bergamot Station, 2525 Michigan Ave., Building G1, Santa Monica. Tue.-Sat., 11 a.m.-6 p.m.; closed Sun.-Mon.; ends April 17. (310) 586-6488.