In the final game of the movie when they play in Dallas, you will see through out most of the game that there are lights about 40-50 feet over the field, thus making it impossible to punt the ball or throw a long ball down the field. These lights were added for the movie, they are not there when the Cowboys play there. In fact, there is nothing over the field, even a roof. Texas Stadium is virtually a dome with a hole cut in the roof exactly the same size as the field. Those lights are being hung by the roof.