The movie was just plain bad. So incredibly full of itself, and the acting was just awful. The movie was just like a cheesy CW t.v. show. It seemed like the two main actors were just competing to see who can make their incredibly frequent three-word sentences last the longest. Don't waste your money, but I know you'll see it anyway. just be prepared for... well, crap.
From the opening scene to the ending credits, the movie comes off horribly forced and full of itself. From every shot to every pathetic one-liner that hints closer to National Treasure than any Indy film, the film lacked everything the made the first one great: chemistry and heart. Many people, including myself were looking forward to not just another entertaining adventure but to seeing Harrison Ford reprise his role of Indy. He did the best he could with what he was given, but when every other character have more in depth story lines than the title character (Shia has never acted this poorly, although it was more an impersonation, see Brando in the Wild Ones) it is difficult do much more than he did, even having been Indy for so long.