I expect most movies being produced today to have a liberal bias of some sort, especially those coming out of Hollywood. Some are subtle, and some are blatant. The blatant ones are usually obvious just by reading a quick synopsis of the film. Avatar, in many ways, I think, tried to be subtle with it's "Green" undertones, and anti-war suggestions, but it failed to be subtle after comments containing the phrase "Shock and Awe" were made, and when part of the ending narrative included lines about the people returning to their dying world. The military is reflected in a ruthless and inhumane light.
The visual effects, lighting, editing and sound are outstanding.