Near the very end of the movie when Jim is on the ledge of the building drunk, and everyones trying to get him back inside, in the background you can see what looks to be a billboard for the movie "Another 48 Hours." because it looks like Nick Nolte on the billboard. Now seeing as this was supposed to be in 1971, and that movie or any Nick Nolte movie for that matter is there, then I'm guessing this is a mistake.