Did You Know?
As Carl wakes up, we have a closeup shot of his alarm clock, his prescription bottle is on the right hand side, and it is from Luxo Drugs - a reference to Pixars short film Luxo Jr.
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Surprise at finding him after opening the front door, after the house had taken off. Carl ask Russell how he got on the porch, Russell said, he had chase the "Snipe" under the porch. But as the house goes up we see the front, including the porch, and bottom of the house. Other following scene like passing the window cleaner, the reverse reflection from the window, and shots with the birds showing the bottom of the house as well as the porch does not appear to have Russell in it. I believe that this to be a continuity error. See more
Spun-off from Up