Revealing mistake: As Elsa sings "Let It Go" she pulls her hair into a long braid going down her back. She pulls it with her left hand from behind her to in front, but the end doesn't flip over her shoulder, she just pulls it straight through to the other side without going over the top. (00:34:10)
Continuity mistake: At Gatsby's second party, a band starts playing. The shot cuts to Gatsby, Nick, Daisy and Tom watching them. In this shot, Gatsby and Tom are a foot or two away from each other, but in a sudden close-up of the two, they are suddenly closer together. (01:12:30)