Emmett and Benny are the only two characters in the film whose eyes are just black dots, every other character has a white dot in their eyes. See more

Goofs

Just before the meeting begins, Superman flies away to go back to Krypton. But when Vitruvius begins listing the attending Master Builders at the start of the meeting, he is seen near "Mermaid Lady,". This is because he was just avoiding Green Lantern. He returns moments latter through a window in the background as Emmet and the rest of the party enter the hall. See more