Surely it’s somebody’s job to fact-check movies before they get made. Small issues slipping through the cracks is one thing, but these plot-holes are something else.

Here are 10 inaccuracies that drive people crazy.

Let’s check them out!

10. Mean Girls missed the memo that African elephants are very different from Asian elephants

Photo Credit: Paramount Pictures

9. The professor in Lucy says we only use 10 percent of our brains, but researchers confirm that we actually use our entire brains

Photo Credit: Universal Studios

8. Chocolate chips weren’t invented until 1930, but Leonardo DiCaprio’s character in The Aviator orders them in 1928

Photo Credit: Warner Bros. Pictures

7. Speaking of Leo, the lake where he says he went ice fishing in Titanic wasn’t formed until five years after the Titanic sank

Photo Credit: Paramount Pictures

6. Even though My Cousin Vinny called a surprise witness, they actually aren’t allowed in court

Photo Credit: 20th Century Fox

5. The movie poster that covered Andy’s escape route in The Shawshank Redemption was from a movie that came out one year after the movie took place

Photo Credit: Sony Pictures

4. If Edward doesn’t have a heartbeat, he has no blood flow. So how can he get things…uh….working well enough to have sex with Bella?

Photo Credit: Lionsgate

3. The math club in Never Been Kissed got pi wrong (it should be 3.14159 etc.)

Photo Credit: 20th Century Fox

2. The Wizard of Oz had trouble with math too, getting the Pythagorean theorem wrong

Photo Credit: MGM

1. Despite what Doctor Strange tries to tell you, even brain surgeons have to wear masks

Photo Credit: Marvel

Some of this stuff is just so basic. I mean, you’ve gotta be smart to make a movie…right?

Do you have any mistakes that really GET you angry?

Let us know in the comments!