KOTCS provides the same level of action and adventure as the previous Indiana Jones movies. Although this one dwells a bit more on other-worldly mysticism [and thus, some of the criticism that the movie could be called "Close Encounter Part II"], the witty dialogue and chase scenes (and twists) draw out the audience laughs and gasps that this type of movie deserves. We caught the first midnight showing and can gladly say we didn't mind losing a little sleep to see the movie.
Of course, I had to wear my 1984 vintage official Indiana Jones hat, a leather jacket and brought the moldy Indiana Jones whip with me (although I left it in the car). My hat was older than most of the people in the theater. The theater manager and the night duty police officer remembered the previous three movies but few others there would.