I love the Art Theatre in its new permutation: they serve booze! They sell Heineken tall boys along with a bunch of other big beers, sangria, wine and mixed drinks at reasonable prices. This is the perfect follow up to a nice dinner at Sushi Kame or some other place downtown, and only increases the enjoyment of movies, IMHO. They also have high quality popcorn (with multiple flavored toppings) and a wide selection of high quality candy (they even used to carry Flatlander Chocolate :( RIP).
Helping things along is a great website for the theater and an email list you can get on that lets you know what they are showing. Before each film, a film geek gives a 5 minute presentation about the movie you are about to see, helping to put the film in context and increase overall appreciation. They don't pick just any old flick to show at this theater either; whoever selects the movies does a great job and has something interesting every week. If you haven't been, check it out.