The small plane at the end was overloaded. (spoiler)
Gerald Butler blocks the plane's take off at the end with his car and demands the pilot take him and his family. The pilot informs GB that the plane is already overloaded, and he would endanger the lives of everyone on board if he took on anymore weight. There's a bit of back and forth with them saying just take the kid... then all of a sudden the pilot relents and agrees to take all of them. WTF?!
This is plainly negligent and reckless of the pilot. I am thinking of the plane crash that took Aaliyah. These rules are not there to be carelessly circumvented. The maximum load capacity of the plane is there for a reason.
The pilot should know this. What's the point of the pilot taking them and killing everyone on board? And GB shouldn't be pressurising the pilot. Instead, he should have simply asked the pilot to do a quick risk assessment of taking on the additional 15kg weight of his son.
And WTF didn't anyone onboard object? He was endangering the lives of everyone onboard.