Spielberg culpou Lucas pelo fracasso de Indiana Jones IV

"I'm very happy with the movie. I always have been... I sympathize with people who didn't like the MacGuffin because I never liked the MacGuffin. George and I had big arguments about the MacGuffin. I didn't want these things to be either aliens or inter-dimensional beings. But I am loyal to my best friend. When he writes a story he believes in - even if I don't believe in it - I'm going to shoot the movie the way George envisaged it...I will always defer to George as the storyteller of the Indy series. I will never fight him on that."