Sometimes media is the message. This stunt could only work in movie theatre, but it is example of simple brilliance:
Insight: If you can demonstrate it, you do not need to say or show it.
This video has also gotten over 3M views, which I found interesting. The stunt is not that overboard to catch the attention, but it is easy to relate. You immediately and intuitively know that you would reach your phone for the message.