Looking at this film thirty years after it was made, the first thing that hits you is how much bolder film makers and musicians were then. Even with all the technical advances that have taken place since 1972, no-one would dare to make a film like this now, even if they could get the financial backing.
The original version of the film (which features as an extra on this DVD) is superb. The rather dated cinematography only adds to the period atmosphere and the audacious concept of playing a live concert in the empty amphitheatre at Pompeii with just the film crew there is just perfect for early Pink Floyd music and makes most other "performance" films seem pretty tame by comparison.
The director's cut is a disappointment. The newly created footage is incongruous and irrelevant. The clips of the Abbey Road studios during the recording of Dark Side of the Moon are interesting but only serve to break the flow of the Pompeii performance. They should be available separately.
Other extras are OK but it is the original film that makes this a crucial purchace for all Pink Floyd fans and fans of rock cinema.