In its unforced, whimsical, quirky, obsessive way, "High Fidelity" is a comedy about real people in real lives. The movie looks like it was easy to make but it must not have been because movies this wry and likable hardly ever get made. Usually a clunky plot gets in the way, or the filmmakers are afraid to let their characters seem too smart. Watching "High Fidelity," I had the feeling I could walk out of the theater and meet the same people on the street and want to, which is an even higher compliment.