We all know trailers are intended to promote their production. To do this, they will invariably use notable scenes depending on the type of movie. In the case of a comedy, Crowning Moment of Funny scenes may be selected. When first shown, they probably elicit the desired reaction: The audience will "laugh out loud", as it were. All fine and good, but this trailer is constantly airing and/or streaming, so you're inevitably going to see it more than once, meaning you're going to be seeing that same amusing scene over and over. Examples of Trailer Joke Decay include: