In a movie, certainly, it couldn't be so simple. The plausibility of the plot would require the monsters to figure out something was fishy when the hunter got up from apparent death the first time. Still, I thought if the ability was used once or twice in particularly appropriate moments, it could be really funny and also make the fans go wild, because they would recognize the game mechanics making a cameo in the film. Imagine: the hunter character in the movie is separated from his pet, surrounded by monsters, shot by an arrow and appears to die, only to be fine later on when his friends come to pick up his dead body. Then maybe towards the end, the bad guy feigns death too, and tricks the heroes with their own trick.
What other in-game abilities would it make you jump with glee to see get a cameo in the movie? What place do you think it would take in the story? The first abilities that come to my mind are Polymorph, Vanish, and a paladin's bubble shield -- anything with a strong visual impact that could play a significant part on the story.