In this photo provided by Anheuser-Busch, actress Helen Mirren delivers a lecture about drunk driving and why it's a terrible idea, in a scene from a Budweiser spot for Super Bowl 50. What an odd question that would have been, say, 10 years ago, but nowadays, in order to build buzz, advertisers increasingly put out teasers for their ads days, even weeks in advance. And many brands then follow that up by releasing the entire 30- or 60-second spot online or on TV - before the Big Game has begun.