Here is a list (with descriptions) of 18 of my favorite CULTURAL movies to show in Spanish class. Some are American films looking at Latino life, and some are foreign-made. Many, I'm positive you haven't heard of.
Of course, I don't show them every year, nor do I show them to every class. Some are better for level I, others better for II, and others for more advanced levels. A few I've only used as a point of reference, where I show a short clip to help illustrate a particular unit.
Hope these titles inspire you and your students!