Ed Viesturs

With only the thinnest thread of a tether anchoring its mountain climbing action in reality, "Vertical Limit" takes suspension of disbelief to new extremes for a film that goes out of its way to seem credible.

Celebrated Everest-conqueror Ed Viesturs has a multiple-scene cameo in this adventure about a climber trying to rescue his sister from a huge crevasse near the top of K-2, the world's highest mountain.

But the stunts are so far-fetched you don't even have to own a pair of hiking boots to find them laughable. Even more hilarious, it's pathetically obvious that much of the movie was shot on a soundstage with cheap mountainside scrims in the background.

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