After the first Angry Birds game debuted on smartphones around the world in late 2009, fans have wondered why these birds are so angry. Seven years and more than 3 billion downloads of the original game later, fans will get an answer to that question with The Angry Birds Movie, arriving in theaters May 20. Sony Pictures has released the third trailer, which shows Red (Jason Sudeikis) going from an outcast to a leader as these birds fight back against these pigs. We also get to see a number of the other iconic characters such as Hal the Boomerang Bird

The Angry Birds Movie takes us to an island populated entirely by happy, flightless birds. Or almost entirely. In this paradise, Red (Jason Sudeikis), a bird with a temper problem, speedy Chuck (Josh Gad), and the volatile Bomb (Danny McBride) have always been outsiders. But when the island is visited by mysterious green piggies, it's up to these unlikely outcasts to figure out what the pigs are up to.

In this hilarious 3D adventure, we'll finally find out why the birds are so angry. The Rovio video game has been downloaded a massive 3 billion times since it launched in 2009, where users shoot a variety of different birds from a huge slingshot, into various structures that house green pigs, known as the Oinks, who have stolen these birds' eggs. Unfortunately, the game is short on back story, and all we know from playing the game is that these birds want their eggs back, and will crash into anything to make that happen. This adaptation will provide a long-awaited origin story, revealing how this rivalry between the birds and the pigs really started.

Related: Angry Birds 2 Is Happening

Back in October, Sony announced the full voice cast for Angry Birds, featuring Jason Sudeikis as Red, Josh Gad as Chuck, and Danny McBride portrays the volatile Bomb, Bill Hader as the pig leader Leonard, Maya Rudolph as Matilda, and Peter Dinklage as the legendary Mighty Eagle. Red is just one of many characters on an all-bird island, but unlike most of the birds, he gets angry at almost anything. The story centers on Red, Chuck and Bomb, who fight back when Leonard and his fellow pigs start raiding these birds' nests.

The supporting cast includes Keegan Michael Key, Kate McKinnon, Tony Hale, Ike Barinholtz, Hannibal Buress, Cristela Alonzo, Jillian Bell, Danielle Brooks, Grammy nominee and Latin music sensation Romeo Santos, and YouTube stars Smosh (Ian Andrew Hecox and Anthony Padilla). Angry Birds hits theaters on May 20, 2016, going up against Universal's Neighbors 2: Sorority Rising and Warner Bros.' The Nice Guys. Take a look as the new trailer for The Angry Birds Movie, as the countdown continues to this long-awaited summer release.

Angry Birds Movie Poster