Rules of Thirds

When Alan first explained the rule of thirds, i was slightly confused on what it meant. So i researched where it is used and how, also looking at examples from films. I used the rule in the Shrek film. My image shows the Merlin as the main character of the scene because he is performing an action, but he is put into the right side of the rule, because even though he is an important part to the scene, Shrek is still in the centre, so that you know the story is evolving around him and his companions.