Look at the Star Wars prequels...that should be enough proof that Lucas has gone crazy. I would bet that Lucas suggested the scene with Mutt and the monkeys, I would bet he thought of the nuke fridge, and I would bet he was the one that thought hey...lets go from religious artifacts and venture into aliens. While I appreciate the fact they went for 50s nostalgia, it feels so out of place with the other trilogy and it could have been a way, way better movie. It is a fun popcorn movie but it could have been a great movie. There is a reason why Ford and Spielberg kept saying no to the man

Now which one is out of place: Spielberg, Lucas, Ford. One of these things is not like the other.