Ari claims Sir Isaac Newton discovered gravity when he was hit in the head in 1692 by a 'Red Delicious', an apple variety that did not exist in 17th century England and would not exist for another 200 years until the cultivar was recognized and named in 1892 in Iowa, U.S.A. 'Red Delicious' is actually a retronym for the 'Delicious' apple, the 'Red Delicious' name wouldn't come into usage until 1914 when Stark Nursery introduced it's 'Golden Delicious' apple to differentiate between the two..
Hitler did not, as is stated in the film, graduate the arts academy; he wasn't even admitted.
While Sam is playing the flute in a concert, her fingers don't move.