Other good Mexican films?

I've loved this movie since I was very young, and despite the fact that it instilled in me a fascination with Mexico, I just realized I've never seen any other Mexican films, unless you count the others by Rodriguez, and ones by Alejandro Jodorowsky.

What else should I see? I'm particularly interested in seeing things with smaller budgets, like this movie. I know there's a whole world of low-budget Mexican cinema that I'm getting no exposure to, because I see those sections in video stores all the time. I just don't know which things are good.

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I'm only five foot one
I got a pain in my heart