Did you use your memories of high school to prepare for the role of a science teacher?
Mark Wahlberg: I was paranoid because I was some high school dropout! [Interrupted by his colleagues' laughter] I wasn’t a good student and had to portray a teacher who was actually really good at his job and the kids loved him. I didn’t tell Night that…I wasn’t sure if he knew of my background.
M. Night Shyamalan: [Surprised smile] I had no idea.
Mark Wahlberg: I definitely got a GED science book and spent a lot of time at the Ben Franklin institute following kids around on their class trips. In other films I’ve spoken other languages and it is one thing to say the words, but I obviously need to feel confident enough to understand them and convey them.