Nice spin on the origins of the crystal skulls referenced by others, such as Clive Cussler. Funny tie-ins with other Jones movies. Some similarities with National Treasure. All enjoyable. I laughed, hid my eyes, 'felt' Shia's angst, Kate's overwhelming desire, and Harrison's older-but wiser, respect for history. Marion was still the imp. Character-wise everything clicked. Action wise-it was exciting. Plot-depends on whether you accept inter-dimensional travel as plausible. The scenery was beautiful. A few technical questions-like how did Kate get down that 'well' so quickly-with no stairs and why ask if Shia has a knife, when you know he does. Nice to see the good prevail, with scruples no less (Yes, Dr. Jones did put that dagger back!).