Indiana Jones and the Last Crusade - Adolfs Ambidextrus!
Indy is in Berlin trying to get his fathers Grail Diary, and when trying to leave he is pushed by the crowd into Adolf Hitler! Hitler kindly signs the book with his right-hand and lets Indy on his way - but, wait a second - wasn't Hitler left-handed?!
I don't know whether or not Hitler was left-handed, but it probably doesn't matter much in this case. If he was, then he was probably made to write with his right hand anyway as a child. You should probably try to find a picture of Hitler writing if you really want to be sure.
Well, actually Hitler WAS left-handed, you can check it in www.moviemistakes.com. If you search "Indiana Jones", you select Indiana Jones and the last Crusade, and view the errors of the movie, you'll find a Factual Error - Hitler was left-handed but in this movie he signs with his right hand. Also the type of writing Hitler does when he signs wasn't used at that time, 1938. So another error. And the nazis didn't burn the books in 1938, they did it in 1932 or 1933. Another error. The Hiddenburg had its accident in 1937, and no Zepellin traveled until 1939 or 1940, so it's impossible Indiana took a Zepellin in 1938. Another error. And that Zepellin was built in 1939, and in 1938 didn't exist, so, another error.
http://www.remnantofgod.org/NaziRCC/HitlerWithFan.jpg
http://www.militarypostcards.com/80-17.jpg
both these pictures show hitler signing with his right hand. maybe he was ambidextrious. i know from my friends dad (born in 1929) that back then if you were left handed they forced you to use your right hand. her dad became ambidextrious because of that.