I typically don't like scary movies, but if you want to start watching them this is a great start.The last part of the movie is a little creepy, but it has a lot of things every movie needs...
-----Ethan is the main character and a great role model. He is smart and resourceful.
-----Benny is Ethan's best friend who is the goofball. Together the two geeks are hilarious
-----Sarah is a vampire (technically fledgling) who hasn't drank human blood yet. She is constantly being verbally harassed by people who want her to drink human blood and turn into a true vampire.
-----There's a lot of humor, for example, the ignorant parents who go dancing every Friday evening and think everything's a school project. As well as the little sister who bargains with Ethan not to tell their parents.
***If you really like the movie there's a television series based off of it. Some of the episodes are more scary then the movie, like: "Die, Pod!" and "Three Geeks and a Demon", but I really enjoy the television series more than the movie.***
I hope you will watch the movie then, if you like it, watch the TV series.