The "home" game sequences were filmed in Shea Stadium. The filmmakers also used the walkway that connected the Mets clubhouse, dugout, and the TV studio that was the home of "Kiner's Korner" post-game show for the singing scene. The Opening Day/band clips came from Major League Baseball (MLB); they were recorded before the fourth game of the 1969 World Series at Shea. Wide crowd shots are from a regular season game, and MLB films also provided clips of Tony Pérez (from the 1970 World Series) and Brooks Robinson hitting.