Ever been blown away by a surprising cameo from a huge star in a film? You're not alone! Recently, BuzzFeed's community sparked a fascinating discussion on social media, asking fans to reveal actors they often forget appeared in major films. The results were astounding and uncovered a treasure trove of unexpected celebrity appearances. Here are some standouts that had us all talking:

1. Vanessa Hudgens in *Thirteen*

This role predates her breakout in *High School Musical*, showcasing her true acting chops.

2. Annie Potts in *Ghostbusters*

Who can forget her unforgettable role as Janine Melnitz?

3. Natalie Dormer in *The Hunger Games: Mockingjay Parts 1 & 2*

Before conquering the hearts of fans in *Game of Thrones*, she held a pivotal role in this dystopian series.

4. Ryan Reynolds in *Sabrina the Teenage Witch*

A delightful surprise for viewers, his early comedic talent shines through alongside a classic witchy adventure.

5. Rainn Wilson in *Juno*

His supporting role adds a unique flavor to this coming-of-age story.

6. Dave Chappelle in *You've Got Mail*

Known for his sharp comedic style, his brief appearance is often overlooked.

7. Jennifer Garner in *Catch Me If You Can*

One of her lesser-known roles, but it's a must-see for any Garner fan!

8. Ellen Pompeo in *Catch Me If You Can*

Yes, that’s right! She shares the screen with Leonardo DiCaprio, long before *Grey's Anatomy* came calling.

9. Samuel L. Jackson in *Jurassic Park*

The legendary actor contributes to one of the most thrilling moments in cinema history!

10. Danny DeVito in *One Flew Over the Cuckoo's Nest*

His early career included this intense drama, showcasing his impressive range.

11. Julianne Hough in *Harry Potter and the Sorcerer's Stone*

A blink-and-you-miss-it appearance, but it’s a fun fact for Harry Potter aficionados.

12. Henry Cavill in *Stardust*

Before donning the Superman cape, he played a charming role in this fantasy film.

13. Amy Adams in *The Wedding Date*

This romantic comedy features a young Adams in a role you might not remember.

14. Chris Hemsworth in *Star Trek*

Talk about a galactic surprise! Hemsworth's brief but memorable appearance predates his fame as Thor.

Which of these surprising cameos had you jaw-dropped? Did we miss any other hidden gems from your favorite films? Dive into the world of unexpected movie magic and share your favorites in the comments! With celebrities continually surprising us, the film industry is a treasure trove of hidden surprises waiting to be unveiled!