People who love the video game Angry Birds can drive people who love football crazy on Sunday by pausing during the Super Bowl commercial for Fox’s animated feathered-friends comedy Rio and scanning for a secret code.

The code can be found on a single frame during the ad, and can be entered in the game to unlock a special level on Rovio’s hit game. In turn, that level will lead the player to a sweepstakes entry to attend the film’s world premiere in Rio de Janeiro on March 22.

The 3-D animated film is about a pet macaw named Blu (voiced by The Social Network‘s Jesse Eisenberg) who is part of a gravely endangered species and is brought to the Brazilian beach city to breed with Jewel (Anne Hathaway) who only wants to escape captivity.