Two unemployed brothers, Bob and Doug McKenzie (Rick Moranis and Dave Thomas), screen a poorly-made film they have produced to a theater audience. When the disappointed patrons become hostile, they release a jar of moths into the theater, which disrupts the showing and allows them to escape without issuing refunds, although they did give one refund to a couple of crying kids, which turned out to be the beer money their father gave them. The next day, the two place a live mouse in an empty beer bottle in an attempt to blackmail the local beer store into giving them free Elsinore beer, but they are told to take their complaint to Elsinore brewery's management; when they do so, they are given jobs on the bottling line inspecting for mice in bottles.
