Frequently Asked Questions
Russell tells Carl that he was searching for the Snipe under his porch. Later in the movie, after the house is relaunched, Dug also knocks at the door and says that he was hiding under the porch when it took off. Apparently, the porch has a floor underneath which goes with the house when it is airborne. Another possibility is that both Russell and Dug hang on to the underside of the porch when it takes off and then climb up onto the porch in order to get inside the house. In the short film "George & A.J." an attempt is made to handwave this by showing Russell bracing himself underneath the house as it takes off.
She and Russell's father are divorced or separated. Russell lives with his mother, who is shown in the crowd at his graduation ceremony.
If Carl's house was approximately 1,600 square feet (150 square meters), and the average house weighs between 60 and 100 pounds per square foot (300 and 500 kilograms per square meter), then Carl's house weighs around 120,000 pounds (54,000 kilograms). If the average helium balloon can carry .009 pounds (or 4 grams), it would take over 12,658,392 balloons to lift his house off the ground. 20,622 balloons appear on the house when it first lifts off, but tearing the house out of the ground and being able to maneuver it is another story.
The film skirts around this by never actually saying how old Muntz was when he set off on his journey. He could have been in his early-to-late 20s or his early 30s. Since Carl was around 10 years old at the time he saw the news reel of Muntz, and he is apparently 78 years old at the time he meets Muntz, that means 68 years have passed, meaning Muntz would be in his 90s.