Melissa tumbles over the balcony face-first with her head closest to the railing. In the next shot, however, she is falling face-up with her feet closest to the railing.
When Jeannie runs at Paul with the pitchfork, she is further away from Paul than she was in the previous shot (as evidenced by the black object to Jeannie's right).
The blender that Jeannie puts the cat in can no longer be heard in the background after Lissie discovers it, but no one turns the blender off.
The blood stains during the "live interview"
The police officers uniforms don't feature any real coat of arms. In reality the uniforms show the coat of arms of the state the officers are from (Bavaria in this case).
When Leon takes the knife from Melissa in the barn, the sound of metal scraping against metal can be heard, but the knife is the only metallic object in sight.