Saw it last night. Just a couple of thoughts:
[spoiler]Magnetism. They make it a big deal to show that the skull/corpses of these aliens are magnetic, yet non-magnetic objects seem to be seriously attracted to it while ignoring other highly magnetic objects. Note that the corpse attracted gunpowder from many yards away, but the Russians had no problems holding their guns so close to it. Later in the movie, Indy and Mutt have a moment, “Wait a minute! Quartz isn’t magnetic! Neither is gold!” They then make no attempt to explain it further.
I agree with most dopers in this thread. Some situations Indy was put in seemed to just have existed to show how tough he is. Surviving a nuclear explosion? I actually groaned.
The Russians weren’t the least bit menacing to me. Comical, in fact.
Mac was completely useless. Characters that flip-flop between sides more than twice need to be canned due to lack of believability. He served no plot purpose whatsoever.
I thought Shia LaBeouf did a great job as Mutt. His lines were funny, he examined everything from a teenager’s perspective (such as asking a lot of questions), and I thought the vine-swinging thing was stupid fun to watch. I did not, however, see how he would have sword skill that matched Irina’s, given that since she owned so many swords, it would be implied that she had years of sword training. Mutt did mention fencing as something he took in school, but it seems he implied he didn’t learn much from it or didn’t like it.
Indy is a master of escape, yet why didn’t it dawn on him to just use his whip when they got caught in the quicksand?
Someone asked what happened to Irina at the end. My friends who I went to see it with put it perfectly, I think: She was the one who actually returned the skull. She said, “Tell me everything,” so they did. They filled up her brain with so much knowledge that she couldn’t contain it all and was subsequently destroyed. I don’t think the aliens knew or cared whether or not she was evil.
How’d Indy get is job back, or even further, obtain a promotion?[/spoiler]
Just my two cents.