It happens to all of us. We watch a movie, know every line by heart, and then somewhere down the line we forget about it. While some movies manage to weasel their way back into the mainstream through pop culture references (cough cough, Mean Girls), we forget about some of the most iconic movies as the years go on. So here are 12 movies you most likely forgot even existed.

1. "The Parent Trap"

2. "Life Size"

3. "Confessions of a Teenage Drama Queen"

4. "Aquamarine"

5. "John Tucker Must Die"

6. "Sydney White"

7. "Just My Luck"

8. "The Sisterhood of the Traveling Pants"

9. "The Lizzie McGuire Movie"

10. "A Cinderella Story"

11. "She's the Man"

12. "Princess Diaries"