In this NFL Films video, Will Ferrell plays Chuck Barry, the self-proclaimed "best NFL trainer in the universe," who helps train USC center Ryan Kalil for the NFL draft.

"After a rather inauspicious career as a walk-on USC linebacker (five career tackles, five career ejections for unorthodox play) and what amounts to tryouts with 12 NFL teams in the 1970s, Barry set his sights on molding young men. His revolutionary style of training -- including "Crab Legs", the "Twinkie Drill" and "The Old Caboose" -- has made an impact on USC players like Kalil, Matt Leinart and others."