This 30-minute documentary is available on the "Brief Encounter" DVD, and features interviews with surviving cast and crew, the background to the film and stories about the film's production. It explores exactly why the film itself is so popular, and why it still has the same emotional content today as it ever did. It's a very interesting watch, and gives you a much deeper understand of the film and the Noel Coward play on which it was based, as well as some light background on what the general situation was like in wartime England when the film was made.
Definitely worth seeing if you're a fan of the film.
Definitely worth seeing if you're a fan of the film.