Hollywood characters have the ability to predict the future with absolute certainty

[Gugg]

The future predictions are always bad though, which gives the Hollywood characters an excuse to turn on their allies...

In I Am Legend, Will Smiith predicts that his devoted canine friend is going to turn against him so he suffocates her.

In War of the Worlds, Tom Cruise predicts that the man who gave him and his daughter shelter is going to get his daughter killed so he murders him.

In The Day After Tomorrow, Dennis Quaid predicts that half the nation's citizens are doomed and convinces the President to abandon them.