signs in Snippets

I saw the movie signs with Mel Gibson. We traveled to seattle because my wife was maid of honor at a friends wedding. We all went to this movie. Really stupid movie. BUT in the previews there was a trailer for another movie and I have no idea what it was called. There are these two men standing on a dock and one says to the other "does your dog swim" and the other man says "dunno" and pushes the dog off the dock into the water and you see the dog sink into the water and bubbles in the water. He turns to his friend and says "guess not" I laughed so hard for so long the movie was actually playing and I was still laughing loudly. My wife was doing her best to quiet me down but other people were laughing at my laughing. It truly was funny. To this day whenever I think of does your dog swim I breakout in laughter