Perhaps Calgary's most artful art cinema the Plaza supports documentaries, independent, and foreign films. The tiny grubby lobby creates an interesting first impression and the washrooms are a bit scary but they only help create the 'at the movies' ambiance of a small historic theater. A regular hosting venue to the Calgary Film Festival and the place to catch midnight showings of cult classics like the Rocky Horror Picture Show, the plaza is a great venue for an interesting night out.
Oh and try the popcorn, it's great.