Not sure if this is a blooper as such but as I watched 'Gypsy' recently,I noticed that ,to lock Steve in the barn at Tinnickers Farm,Kellett swings the piece of wood attached to the left-hand door across the other door.If you think about it,this primitive lock would only be effective if the doors opened outwards.But,as the doors are sliding doors,all Steve would have to do to escape would be to slide one of the doors back!