To make it look more like a movie, the house set lights are dimmed down and the outdoor lights are brightened.
WILHELM SCREAM: Heard during the paintball war near the end of the movie.
During the airport scene the song 'Run Rudolph Run' is playing while the Duncan family runs to their gate. This could be hinting at the 1990 Christmas classic Home Alone (1990) where a similar scene with the same song is shown.
The line, "Badges? We don't need no stinkin' badges," is a reference to The Treasure of The Sierra Madre (1948).