Just to make sure I understand this right...
Jodie Foster can cause a lot of scenes/disruptions, attack another passenger and it's all gravy because why?
shareApparently, you missed the last third of the movie where it was revealed that the air marshal and a flight attendant had a plot that involved killing Jodie's husband and hiding her daughter in the nose of the plane (in order to drive Jodie crazy). And, apparently, you missed the part towards the end where it was revealed to the other passengers that Jodie did, in fact, have a daughter on the plane.
OOOPS! Maybe you're still haven't gotten to the last third of the movie and I spilled the beans. My bad!
~~Bayowolf
There's a difference between being frank... and being dick.