Angry Birds is done by first time directors Clay Kaytis and Fergal Reilly, who did art and animation work on gems like Hotel Transylvania and Frozen.
Considering that the co-directors, Clay Kaytis and Fergal Reilly, have backgrounds in animation (Kaytis having worked on a number of major Disney productions, starting with Pocahontas and extending through Frozen ).
It's the directorial debut of veteran animator Clay Kaytis ("Frozen," ''Tangled") and storyboard artist Fergal Reilly ("Cloudy with a Chance of Meatballs," ''The Iron Giant"), who are working off a script from "The Simpsons" alum Jon Vitti.
Ever-ticked-off Red (Jason Sudeikis) winds up in an anger-management class taught by Maya Rudolph’s Matilda and populated by hulking Terence (Sean Penn, if you can believe it), speedy Chuck (Josh Gad of Frozen ), and volatile Bomb (Danny McBride, doing what sounds like his Seth Rogen impression).
Josh Gad is also good as Chuck, but his performance feels very, very similar to the one he did as Olaf in Frozen.
Kaytis served as an animator on Frozen (2013), Wreck-It Ralph (2012), and Chicken Little (2005) while Reilly worked as a storyboard artist on Spider-Man 2 (2004) and The Iron Giant (1999).