Ha Actually, I heard that a lot of the "issues" (not wanting to give spoilers) were with Lucas' ideas. He is supposed to be the one that came up with "where the crystal skulls came from" if you know what I mean. I think that, and the combination of a lot of green-screen work (obviously fake backgrounds) hurt the movie most...
If you watch the BD bonus, Spielberg pretty much dumps the whole thing on Lucas. Spielberg says he was the one that did not want to make the movie and that Lucas came up with the novel story. Lucas is very creative, but he can't execute details worth a crap. Star Wars - the Next Generation - is all the proof you need, but Indy was the final straw – I’m not a fan of his anymore. My dog could write better dialogue.
