SPOILER WARNING: This Post Contains Spoilers For Baby Driver

Baby Driver is proving to be a hit in theaters, but fans may not realize just how difficult one of the film’s most memorable moments may have been to put together.

Baby Driver includes a scene in which Baby (Ansel Elgort) and his foster father Joseph (CJ Jones) are watching television. As they flip through channels, they land on Pixar’s Oscar-winning movie Monsters Inc. just as Mike, in conversation with Sully, delivers the line “You and I are a team. Nothing is more important than our friendship.”

Next: The Top 5 'Cool' Crime Heist Movies of All Time

Everything that Baby watches on television is reference later in the movie including that line, which Baby says to criminal ringleader Doc (Kevin Spacey) during a particularly tense moment. The reference may seem like a simple joke, but it is rarer than it may seem on the surface.

Disney is very protective of its intellectual property. In particular, it does not like to lend out its G-rated kids fare for R-rated films. It was Pete Docter, the director of Monsters Inc., who made this rare occurrence happen. He loved the call back in Baby Driver so much that he personally requested approval for it from Disney and the studio went along with it.

Director Edgar Wright confirmed this story io9, saying “I think Pete Docter is a very fine dude indeed and as a fan of him (Inside Out is my fav Pixar), and of the company, it was super cool of him.”

Now Baby Driver fans know exactly who to thank for the Monsters Inc. reference.

Next: Edgar Wright Reveals Baby Driver's Musical Inspiration

In Baby Driver, talented getaway driver Baby (Ansel Elgort) relies on the beat of his personal soundtrack to be the best in the game. After meeting the woman (Lily James) of his dreams, he sees a chance to ditch his shady lifestyle and make a clean break. Coerced into working for a crime boss (Kevin Spacey), Baby must face the music as a doomed heist threatens his life, love and freedom.



Baby Driver is written and directed by Edgar Wright and stars Ansel Elgort, Kevin Spacey, Lily James, Jon Bernthal, Eiza González, Jon Hamm and Jamie Foxx.

Baby Driver is now playing in theaters.