This is Bunnymund’s actual reaction to Pitch being invisible/not believed in towards the end. It’s interesting because you would expect Jack to be the one who understands Pitch most, he’s been invisible all his existence after all. Yes, Jack looks shocked too, but by far not as devastated and compassionate as Bunny does. Later, when Pitch is being dragged into the hole it’s Jack who goes from mischievous to horrified, but here, the moment Jamie runs through Pitch… the expression of Bunnymund just kills me.