Sacha

Revealing mistake: After the credits all the smoke coming out of the chimneys remains still, revealing it's a painted set.

Sacha ★

Revealing mistake: Mary takes a huge mirror out of her bag and the kids stare in awe. Problem is that Michael's view points in a different direction, giving away that they were looking at the void and Mary was a superimposed image to achieve the effect.

Sacha ★