10 Things You Probably Didn't Know About Old School

10. The guy who shows up at Mitch’s (Luke Wilson) house looking for the “gang bang” is a recurring character played by director Todd Phillips. Nicknamed “Mr. Creepy,” the guy with the signature ‘fro and track suit sucks on Amy Smart’s toes while she sleeps on a bus in "Road Trip," is interrupted while getting some love in an elevator in "The Hangover," and shacks up with a drug-dealing Juliette Lewis in "Due Date" (where we find out his name is Barry). 

9. There are six references to the band Whitesnake in the movie. Their hit single “Here I Go Again” is played three times (and hummed once), Mitch mentions how Nicole (Ellen Pompeo) was intimidating in high school because she had a Whitesnake jean jacket, and Frank (Will Ferrell) is wearing a Whitesnake t-shirt in the end-credits scene. 

8. The two topless girls who K-Y-wrestle elderly pledge Blue are introduced as residents of Hayden Hall. That’s the name of the actual dorm Phillips lived in while attending NYU. 

7. The diner where Mitch attempts to explain his lifestyle to Nicole is the world-famous Quality Cafe in Los Angeles. The iconic diner has been used in movies like "Seven," "Training Day," "Gone in 60 Seconds," "Mr. and Mrs. Smith," "Fight Club" and so many others it has inspired its own video mash-up. But it actually isn’t a functioning restaurant. It’s only rented out for film shoots.

6. Speaking of "Fight Club," Phillips and co-writer Scot Armstrong actually intended "Old School" to be a comedic version of the David Fincher movie. Consider the basement wrestling match, the diner scene where the grateful wait staff pay tribute to “the godfather,” the use of office photocopiers and supplies to make propaganda, and the main characters all looking beat-up and tired at work. Also, Vince Vaughn’s outfit during the pledge-initiation scene is meant to mirror Tyler Durden’s. 

5. When Dean “Cheese” Pritchard (Jeremy Piven) informs the guys that they failed their evaluation because the deceased Blue received a zero score which dropped their 85 average down to 58, his math is way off. For a zero score to drop the overall that much, there would have to have been only three frat members. With 15 guys, the zero would have dropped the overall average to a still-passing 79 percent. 

4. On the DVD, if you go to the set-up menu and scroll all the way down, the words “Ask Frank” are highlighted. Clicking on them gives you a deleted scene showing a drunk Frank watching “Girls Gone Wild” in the basement before Mitch comes in and asks him to watch Nicole’s daughter, Amanda. 

3. Actor Patrick Cranshaw, who played Blue, got his first credited screen role (after several bit parts) in 1960, when he was already 41 years old.

2. In the opening scene, when Mitch is running through the airport, you can see signs that read “South Hall” and “Kentia Hall,” which are sections of the Los Angeles Convention Center (home to the video-game convention, E3) where the “airport” scenes were actually shot.