Throughout the movie Jack uses charades to conserve on words. Yet when he's first discovering how the tree works, even gestures counted against him as words.
When Jack and Dr Sinja are talking in diner, a woman sits down behind Dr Sinja, in next shot same woman walks by the two men and in very next shot she is adjusting herself behind Dr Sinja after sitting down.
When Jack shows Aaron his situation with the tree, he dismisses it as a coincidence, and Jack responds, "It's not a coincidence, you idiot!" Jack said six words, but the tree lost five leaves.
When Jack is fired, the breadstick moves from his ear to his hand between shots.
When Jack and Dr Sinja are talking, the hair of the woman behind Dr. Sinja changes from untied to tied and back again throughout the shot.
The cameraman is reflected in Jack's bird-dropped car.
After Jack gets in the elevator with a semi-naked man, a black town car drives off. A boom mic and crew member are reflected in the car's right rear quarter panel.
Sinja tells Jack that a tree dies when its leaves fall. Many trees lose their leaves in the fall and go dormant in the winter, without dying.