The 1986 film "Ferris Bueller's Day Off" about three truant teenagers' adventures around Chicago was screened Saturday night at the historic baseball field. The event helped mark the film's 25th anniversary.
The trio attends a Chicago Cubs game at the park in one scene. In another, Ferris lip syncs "Danke Schoen" after getting onto a parade float.
Prompted by that classic scene, more than 900 viewers sang the song before the screening. A representative from the Guinness Book of World Records confirms it broke the previous 500-person record for the most people singing in a round.
The screening was the first of its kind at Wrigley Field.