Bonus Guardians of the Galaxy Movie Content With Shazam App
If you are on your way to see the Guardians of the Galaxy movie or haven't seen it yet, you might want to install the Shazam App.
Marvel's "Agent M" on Twitter just let it be known that if you open the Shazam App during the Guardians of the Galaxy end credits, extra content will be displayed on your smart phone.
The Shazam app is capable of recognizing audio, and then when it hears the audio, it unlocks the bonus content.
Penagos (@AgentM) August 1, 2014