Not in my opinion. I've tried the Moshi anti-glare film, and while it does its job, it is not nearly as good as a matte LCD panel. I'm sure that all the films are basically the same.
I forgot to add that I 100% agree. Before the 15" AG uMBP came out I bought the standard uMBP and purchased a film. I was so use to the Classic MBP that I couldn't handle the glassy screen. As soon as I saw the AG uMBP in the store I was sold, it is much better than the film, IMO..