Jude's shadow was not supposed to be shown in an early shot because his character had not been introduced in the movie yet.
In one scene, Jude does a trampoline trick and then lands behind one of the trampoline's posts. This was not intended to happen and was done by mistake. It was so funny that it was included in the final movie. In fact, the reason the clip was so short was because the director was holding in a laugh from it happening, so he ended the clip before the laugh would be in the clip.