Forget the movie! This is the real thing. The show aired on the Discovery Channel in the US on Saturday 7th December 2015.
Paul Rosolie, an environmentalist, tracked down a 20ft-long green anaconda in South America.
He wore a special suit, helmet and carried an oxygen tank. He also smeared himself with pig's blood to smell appetizing.
As cameras rolled, he crawled on all fours towards the snake.
The giant snake pounced and coiled around him before proceeding to swallow (almost) him alive.
Watch the shocking footage below.