The Quahog Theater is where Peter uses Quagmire and Joe for target practice while making them sing "Makin' Whoopee" in vaudeville outfits in "Lottery Fever". After Peter shoots out Joe's eye and hits Quagmire in the throat, they both storm off, leaving Mort Goldman to appear and announce that he's auditioning for Fiddler on the Roof.
The Quahog Theaters is a multiplex that shows films. Brian stops in to see Baywatch in "The D in Apartment 23" and makes a racially insensitive tweet about the film Ride Along 3.