All the events are shown in real time as it happened, that is what makes this documentary so powerful. I would give this 10 STARS if i could, i cannot recommend it highly enough. Having just watched this u.k. dvd release i have also noticed that this version is slightly longer than the version aired on CHANNEL 4. There is at least 5 more minutes of harrowing footage edited back, of course making the feature a 102 minutes long as it should be. MISSING EXTRAS 18 minute documentary advertised on sleeve. But still a MUST HAVE D.V.D. Just to add to this review for anybody who is curious about the missing 18 minute short, it interviews some of the people who shot the footage. One very sad fact you learn is that a lot of the firemen you see filmed by the amateurs are among the ones who perished. But the 18 minute short is really just a view once extra, while the main feature is just mesmerizing and i personally can not take my eyes off the screen every time i view it.