The Birds and The Bees

Interview with Shyamalan: The story never touches on why exactly the trees and plants are so upset with us, what triggers "The Happening." Why did you leave that out?

That was always the intention of the movie—to have this open-ended quality—I wanted it to bleed out into the real world a little. For me, one of the great things about "The Birds" was that you never knew why it happened. By leaving it out you force the audience to consider what their own culpability is, to ask, "Are we blameless?" Because, of course, we aren't.

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