We don't know exactly how long she could hold her breath underwater, but she clearly pushed herself to the limit: She repeatedly ruptured an eardrum from the hours she spent in studio tanks.

The record for holding your breath underwater (amongst humans) is an impressive 24 minutes and 37 seconds, set by freediver ...

They went hardcore. The cast was trained to hold their breath for minutes to pull off those mesmerizing underwater shots. No CGI shortcuts—this was the real deal, folks. And the person ...