Continuity mistake: After the spaghetti twister, Flint puts on his lab coat in the elevator and you can see he has his tuxedo shirt on. Then during the building montage, it's a blue shirt, then changes back to the tuxedo shirt when he turns on the car. Also, during the building, the design on the blue shirt disappears.
Earl Devereaux: You see this contact lens?
Flint Lockwood: Yeah?
Earl Devereaux: This contact lens represents you! And my eye represents my eye! I've got my *eye* on you!