I think the train shots in "Sugarplums" should have the most dynamic camera angles of all the gifts since it represents the apex of the progression of the dream.
The Polar Express. Dir. Zemeckis, Robert. Warner Bros. Pictures, 2004.
"Another super useful feature in OnLocation is the split screen button beneath the field monitor. You can superimpose or split the screen between either two previously shot clips, or between a previously shot clip and the live camera. You can set the position of the split screen and or the opacity of the overlay of one scene onto the other. This allows you to do things like match eye-lines or position actors from different scenes relative to each other. This could even help monitor continuity between scenes."