The movie you mention can be rented as a DVD at any videostore/videoclub around the city. There are many sidewalks with people selling illegal copies (truchas, in argentinian slang/lunfardo) for $5 or 10. You can buy a famous movie like it at the musicstores or bookstores starting at some $50, or you can download it for free or watch online.
The are some movie theathers that only screen independent movies, not exclusively argentinian ones. You have a little chain, cineplex, located at Belgrano and Caballito neigbourhood, Cine Gaumount, on Avenida Rivadavia, next to Congreso. Teatro General San Martin is another option.
Friends you will make here may burn a CD for you with a copy of the movie.
thanks!!! any argentine movies out now that are playing in the cinemas?? I remmeber watching Carancho last year at the Abasto cinema(hoytcinema???