I'll start by saying, I've watched the previous 2 Mummy movies several times and I enjoy the heck out of both of them. They're fun, exciting, adventures. That being said, based on most of the reviews for the 3rd installment, I wasn't expecting the same for Tomb of the Dragon Emperor.
The good news is, That feeling of adventure is still well-intact with this film. The Chinese mummy stuff was done quite well, and it held my interest all the way through. The action also did an above average job of giving the film an old school adventure feel.
The problem is that there is too much that I really didn't enjoy. The script felt like a distant imitation of the previous 2, lacking real charm or fun, and the acting here is as below-par as it gets, even with a franchise that doesn't rely on it much at all.
While the film is the worst of the 3, due to it's fun deprived script and bad acting, it doesn't ruin the franchise for me. I had a good time watching it, it gets a 6.5/10 from me.