Black Coffee is a three-hour, three part movie chronicling the history of coffee and the conditions faced by coffee farmers. It gives a great unbiased overview of the coffee industry, but also explains the challenges that coffee farmers are facing.
Black Gold is another good movie to check out. It's gotten a bit more publicity than Black Coffee, but gives a good overview of the plight of coffee farmers.
Let us know if you get a chance to check them out and what you think.