As shown in this previous post describing how Buster Keaton filmed The General in Cottage Grove, Oregon, Buster and crew stayed at the Bartell Hotel during the production, staged the summer of 1926. The hotel stands just a block or two west from where most the filming took place.
But the hotel, later re-named the Cottage Grove Hotel, has another claim to classic comedy fame. The hotel appears during the homecoming parade finale to the 1978 comedy Animal House. When “Stork” (played by the film’s co-screenwriter Douglas Kenney) diverts the marching band into a dead-end alley before the Delta House wrecks havoc on the parade, you can clearly see the Cottage Grove Hotel awning in the background.
Both The General and Animal House have been inducted into the National Film Registry of the Library of Congress as works of enduring importance to American culture; Buster in 1989, and The National Lampoon comedy in 2001.
This brief video hosted by A.M.P.A.S. from a talk I gave in 2011 further explains how Buster filmed The General in Cottage Grove. You can read all about filming The General in my Keaton film locations book Silent Echoes.