The plot of Monsters University details Mike and Sulley's first meeting, but this created a continuity error from the first film in which Mike tells Sulley that he has been jealous of his looks since the fourth grade. Director Dan Scanlon said he had a dilemma with this line during pre-production, but he believed it was best if Mike and Sulley meet in college because, "we wanted to see their relationship develop when they were adults. And we also felt like college is so much about self-discovery and figuring out who you are." He added, "It felt like the perfect place to do this, but we had that line. So we tried versions where they met young and then we skipped ahead to college. And we knew we didn't want to make Monsters Elementary." Scanlon said during pre-production that, "Pete Docter, the original director, and John Lasseter ... finally said to me, 'it's great that you're honouring that, but you have to do what's right for the story.' So we made a tough decision to just have them be in college and put that line aside." Scanlon also said the line from the first film is, "an old monster expression" and "That's what monsters always say to each other."^[26][27]