The video camera was not a communication device in the practical sense — there was no signal in the canyon, no way to transmit the footage, no audience receiving it in real time. But the act of recording created, psychologically, a form of audience. He was not alone in the way that someone without a camera would have been alone. He was performing, in the technical theatrical sense, for an imagined and anticipated audience of the people he loved. That performance may have helped him stay connected to the reasons for surviving.
The film 127 Hours addresses this in its own way. James Franco’s performance includes extended sequences of Franco speaking to a camera, re-creating the kind of video messages Ralston described making. These sequences are among the most critically praised aspects of the film — they capture something about the combination of performance and genuine communication that the situation required, the way that speaking into a camera in a slot canyon is simultaneously an act of hope and an act of farewell.
The film’s representation of the video messages is, necessarily, a re-creation. Franco is not Ralston. The canyon in the film is a set, or a location that was selected and dressed to approximate Blue John. The messages Franco records for the camera are a screenwriter’s interpretation of what Ralston might have said, filtered through Danny Boyle’s directorial decisions and Franco’s performance choices. They are, at their best, an attempt to honor the emotional truth of what Ralston documented without having access to the actual recordings.