"Once Upon a Time" finally found its Princess Elsa ... Georgina Haig was on set Wednesday to shoot after beating out a smoking hot bikini model. Fairy tales don't always come true.
Georgina was sporting the signature blonde wig and blue dress from "Frozen" ... but if ABC had selected Anna Faith -- who campaigned hard for the part -- this photo could look much, much different.
Sure, they probably would've put Anna in the same stupid dress, but still ... the producers might have made a mistake here.
Just sayin' ...