It's odd that people don't understand that Indiana Jones is really just all about fun and adventure, and since that's intact perfectly, this is a mighty fine sequel in my opinion.
The latest installment in the Indiana Jones franchise, The Kingdom of the Crystal Skull, was made 20 years after the Last Crusade, which was believed to be the last one in the series, (they hint at that in the title, although that's not really what it means.) but fate has proved that Indy cannot die (at least for now) even without his invincibility. George Lucas and Steven Spielberg have paired together once again, and they do a fine job at reviving Indiana Jones. The acting is acceptable for the film, and the look of the movie is fine too. The action is definetely still there, but I would have enjoyed seeing Indy kick the crud out of a few more baddies. Many fans complained about the story being about aliens, but I thought it was fine for a change.
The humor is where this movie is really good at. There are a lot more jokes in this one, and it helps liven up the movie alot. It's a completely enjoyable movie, but there are parts that are more highlighted than others.