There are many fun movies to watch with friends, depending on your taste in movies and sense of humor. Here are a few examples:

1. The Hangover (2009) - This raunchy comedy about a bachelor party gone wrong is a classic choice for a movie night with friends. It's full of hilarious moments and quotable lines that are sure to get you laughing.

2. Bridesmaids (2011) - This female-led comedy is a great choice for a girls' night in. It's full of relatable humor and a great ensemble cast that includes Kristen Wiig, Maya Rudolph, and Melissa McCarthy.

3. Mean Girls (2004) - This teen comedy has become a cult classic, with its witty writing and memorable characters. It's a great choice for a group of friends who want to relive their high school days (or make fun of them).

4. Superbad (2007) - This coming-of-age comedy about two high school seniors trying to have a wild night before graduation is full of awkward humor and hilarious moments. It's a great choice for a group of friends who want to laugh and reminisce about their own high school experiences.

5. The Princess Bride (1987) - This classic adventure-comedy is a great choice for a group of friends who love a good story. It's full of swashbuckling action, witty dialogue, and a charming romance that makes it a perennial favorite.

These are just a few examples, but there are many other great movies to watch with friends, depending on your mood and interests.