Can't Hardly Wait (1998)

Genre: Comedy | Romance
Starring: Ethan Embry, Charlie Korsmo, Lauren Ambrose, Peter Facinelli, Seth Green, and Jennifer Love Hewitt.

Tagline: For the class of 1998, the last night of high school is the first night of the rest of their lives.
Plot: Multicharacter teenage comedy about high school graduates with different agenda of life on graduation night.

http://www.imdb.com/title/tt0127723/
http://en.wikipedia.org/wiki/Can%27t_Hardly_Wait