Set in a delightful art-deco building (look for the stained-glass platypus in the foyer dome), this archive preserves Australian moving-picture and sound recordings. The gallery space stages free temporary exhibitions on Australian film history. There's also a cute little theatre where documentaries are played and the larger Arc Cinema, used for special screenings and film festivals; check the website for show times.
The courtyard is also home to a very pleasant cafe.