Character mistake: When they're reviving Lindsey, Bud screams "fight" and slaps her. watch as she closes her eyes on the second slap while she is supposed to be dead.
Character mistake: When Bud is doing mouth-to-mouth on Lindsay, he's not pinching her nose closed, so all the air he's breathing in is going straight out her nose.
Answer: The technology does exist, yes. Read http://en.wikipedia.org/wiki/Fluid_breathing for details.
Tailkinker ★