If you were excited about Frozen coming to Once Upon a Time  before, get ready to freak out. Georgina Haig was seen in costume as Frozen's Elsa in season four while filming scenes for the show on the Vancouver set on Wednesday. While she wasn't throwing ice or snow around, she definitely looked the part. Also on Wednesday, the cast (minus Georgina) was spotted filming scenes . We'll have to wait and see when Anna and Kristoff show up , which could be in flashbacks in Arendelle or in present-day Storybrooke, where Elsa was transported to at the end of season three. Hopefully we'll see other characters soon — as well as many other things from the Frozen movie  on Once Upon a Time.