In the scene where Julie and Helen are looking at the computer and have like 7 articles of things about Billy Egan, if you look really closely at the one on top you can see the year he graduated was 1993. Later in the movie when Julie, Helen, and Barry are looking at Elsa's yearbook it shows that both Elsa and Billy Egan graduated in 1992. Guess the producers can get hot actresses, but can't get the year of a dead guy graduating high school right.