The Sneak Peek Tournament is an Angry Birds Friends Tournament that happened on:
- Tournament 1 (September 29th to October 5th 2014)
It's a tournament made to tease the first image of the The Angry Birds Movie by separated portraits of parts of Red, Chuck and Bomb in the levels. Those portraits are hidden in wood, bricks, or bands in the levels. The blockers would be destroyed as the player destroyed the tools the pigs had. It's basically the first Movie Tournament ever.
A blog post was made a day after the tournament began: https://www.angrybirds.com/blog/lets-unlocktheflock/