TOBEY OR NOT TOBEY Name and occupation: Tobey Maguire, actor. Age: 22 Credits: This Boy's Life (playing Leonardo DiCaprio's teenage drinking buddy) and Griffin Dunne's Oscar-non short, Duke of Groove. Coming soon: Ang Lee's The Ice Storm (co-starring Kevin Kline, Joan Allen, and Sigourney Weaver) and Woody Allen's Deconstructing Harry. On working with the heavyweight cast in The Ice Storm: "It was a perfect movie to cut my teeth on. Joan Allen was phenomenal. Kevin Kline was awesome, too." You were in good company for a relative newcomer: "Occasionally I have to do a thing called a 'Check me out,' where you look at a situation and go. 'Holy shit, man, check me out.' Check me out, I'm doing a scene with Joan Allen. I'm a kid who with his mom got a bag of groceries from his manager because we were too poor." How he plans to be the Hume Cronyn of his generation: "I want to be around until I'm 80 years old. I want to always work with the very best director, actors, and scripts, and I think to do that you have to hold out."