george lucas only co wrote the script. he didn't write the story. spielberg is credited with the story, and he also directed it. just fyi.
people just don't appreciate amazing production job by these people.
Production over all was slick, as expected from Spielberg/Lucas team.
The whole plot and story was incredulous. The flying saucer bit was completely OTT. In the middle, the movie was dragging on a lot, for no rhyme or reason. Indiana Jones surviving a nuclear bomb by hiding in a fridge that was tossed around like a tennis ball, stretched all limits of incredibility (at least for viewers with more than 2 functioning brain cells).
But at the end of the day, its a movie. And folks should enjoy it for what its worth. Its no Raiders of the Lost Ark, by any means. There is a big built-in fan following for Indy Jones. We saw 10 pm show on a weekday (Tuesday) and while it was screened at the largest screen in the multi-plex, there were a total of no more than 13-14 people in the theater. Allowed us to stretch easily while the movie was rambling on. My wife is pretty sure I dozed off for a few seconds in the middle, but I forcefully deny any such allegation. :)