Mistakes
When taking over the Nevada test site, the head Russian drops to tie his shoe as four soldiers pull out machine guns to kill the U.S. guards. Both soldiers on the right run out of ammo, yet keep moving their guns as though they are still shooting. See more...
Trivia
The student in the Marshall College library, that Mutt and Indy almost run over at the end of the chase, is Chester "Chet" Hanks, son of Tom Hanks. See more...
Movie Mistakes blog
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Other great sites
Indiana Jones and the Kingdom of the Crystal Skull (2008) - 6 with pictures
Directed by Steven Spielberg, starring Cate Blanchett, Harrison Ford, Jim Broadbent, John Hurt, Karen Allen, Ray Winstone, Shia LaBeouf (add more)
Screenshots of mistakes that have been online for less than a year are only visible to members, but the rest are available to everyone. Don't forget to check out the picture of the day, updated daily, and the top 30 screenshots too.