Every M. Night Shyamalan Plot Twist Ranked From Worst To Best

Plot: A widowed farmer and former reverend named Graham, (Mel Gibson), his brother Merrill (Joaquin Phoenix) and Graham's two children (Rory Culkin and Abigail Breslin) try to survive an alien invasion.

While the dialogue is risible and Mel Gibson was miscast in the lead role, Signs is a very interesting and suspenseful film for most of its run-time. Unfortunately, the final twist is a complete bomb in every way.

The reveal about the water was a huge misjudgement. The aliens coming to earth isn't necessarily a plot hole - it's likely they didn't know about this weakness until they started their attack - but it does make them seem far too easy to defeat and therefore far less scary.

As for the divine intervention part, Graham's wife died in a car crash and before death she told Graham to tell Merrill (who's a former baseball player), to "swing away" and Graham realizes she was foreshadowing the alien invasion, so Graham tells Merrill to use his baseball bat on an alien who is still in their home.

Err... why did a woman have to die in order for a man to know to use a baseball bat on an intruder? A divine intervention was a very interesting idea but it was done in an atrocious and unacceptably illogical way here.

Were it not for these two terrible reveals, Signs definitely wouldn't be as divisive as it is these days.