We recommend planning on about 20-minutes on shoot day to film each interview. Depending on the subject matter and content, most interviews don't take longer than 30-minutes to film. In fact, many don't take nearly that long, but we always prefer to spend a few minutes waiting between interviews or tweaking our lighting setup than to be rushed or to make people wait on us unnecessarily. That said, we're making art, so setting the expectation that we may not run precisely on time is wise. In some unique circumstances, interviews may take longer than 30-minutes to film, but typically we all understand this before they are scheduled.