I've detected some Indiana Jones bashing out there. I liked Indiana Jones and the Kingdom of the Crystal Skull. Is it like the others? Well, yeah, but is that really a problem?
There are great action sequences, from a thrilling opening--with Soviets replacing Nazis as villains--to a hyper motorcycle chase that helps introduce new Indy sidekick Mutt (Shia LaBeouf).
If you're familiar with general paranormal lore, you'll recognize many of the plot riffs stemming from the crystal skull but there's so much excitement and spin that it's all pretty fresh, and if you've avoided spoilers there are many other neat character surprises as well.
I liked it on a par with Raiders and Last Crusade and better than Temple of Doom.
Ohhh, I almost forgot to mention there's a "Lost" Easter Egg: Andrew Divoff aka Patchy aka Mikhail Bakunin is seen briefly as a Russian soldier.