Silly me I thought this was supposed to be an adventure movie, not a Sci-Fi B movie. The action was pretty good, the pace wasn't bad, but the ending was very lame and out of character with the other three movies. All of the acting was good, with the exception of Cate Blanchett - who I usually like. I'd advise waiting for DVD release and renting this one it's not worth the high price of admission.