This looks like a great documentary to watch. It airs Fall 2013 on PBS. The website describes the film as follows:
LATINO AMERICANS is the first major documentary series for television to chronicle the rich and varied history and experiences of Latinos, who have helped shape North America over the last 500-plus years and have become, with more than 50 million people, the largest minority group in the U.S. The changing and yet repeating context of American history provides a backdrop for the drama of individual lives. It is a story of immigration and redemption, of anguish and celebration, of the gradual construction of a new American identity that connects and empowers millions of people today.Try to catch it if you can and read more about it on PBS's website.