pmark23
Veteran
Shouldn't that depend entirely on the subject? Afterall, in corporate settings, don't people routinely sit for hour-long seminars and presentations?
But they don't WANT to -- they HAVE to. I'm concerned with not just making the film, but transferring information to the viewer (which is a part of my pitch). I "guarantee" that the viewer will come away knowing the topic (about the company, or about some safety aspect, or about some strategy, or about what they're doing for the environment, etc), and to do that the film must hit the subject material effectively. After more than a few minutes people begin to tune out, and not only do they not pay attention, but anything they may have learned also gets lost.
Watch people watching a corporate film and you'll see this. Dim the lights and they sit back, relax, and focus on the film. For the first five minutes they're really into it. After that they begin looking around, start to fidget, play with their cell phone... You need to deliver the message before this happens, and then get out and end on a high note.
Business-wise you may think that you'd make more money on a single larger film, but I try to get a contract for several shorter films (over a longer period) which keeps my revenue-stream full, and keeps me from having to waste time continually chasing new clients.