Trivia: Sticking with the To Kill A Mockingbird references, in the scene where Deeds and Pam are outside of Pam's "apartment" and the old lady and dog walk out. She calls the lady "Mrs. Finch" and the dog "Atticus". Atticus Finch was the main characters name in To Kill A Mockingbird.
Trivia: While Deeds is saving the cats, and at the end of the film, Rob Schneider makes a cameo as Nazo from Big Daddy.
Chosen answer: Helicopter performance is dependent on a number of factors, including air density. As altitude increases, air density decreases and the performance of the helicopter falls as well. At the height of Mt Everest, the air density has fallen to a sufficient degree that most helicopters would be unable to function (few helicopters are capable of functioning above 20,000 feet, nine thousand feet lower than the summit of Everest).
Tailkinker ★