Mean Girls was undoubtedly one of the most famous movies of the 2000s. People still continue to quote it, rewatch it and reference its scenes on a daily basis. Although it is a comedy, there are some sarcastic and even useful lessons we could all take away from this film.

1. There will always be "fake friends"

2. People will find out what you say behind their back at some point

3. On Halloween, almost anything is acceptable

4. Don't let anyone stop you from doing what you want to do

This is easier said than done, but it's possible with a little confidence.

5. You can't always trust everyone

There's going to be people you trust and people you don't tell everything for a reason. Figure out who those people are before falling into a crowd of them as a trust exercise.

6. Not everyone likes to be bossed around

From Gretchen Weiner's history lesson, we learn that it's not always okay for one person to be the boss of everyone. The Plastics, at times, seemed to be more of a dictatorship run by Regina George.

7. Ex-Boyfriends are off limits for friends

Sisters before misters. Let's hope most of us remember that rule.

8. It's ok to be different

Embrace your differences. The world would be pretty boring if we were all the same.

9. Trust the people who were there for you from the beginning

The friends that stayed by your side when no else did are the ones you should keep. Trust their judgment.

10. We all make mistakes...own up to them.

There's nothing worse than denying something you actually did with no remorse.