Rebellion: The Litvinenko Case is a 103 min documentary created by a friend of Alexander Litvinenko, the Russian dissident who sought exile in this country but was poisoned by persons alleged to have put Polonium 210, a radioactive substance, in his tea in a London hotel. The substance was allegedly smuggled aboard a British Airways plane where traces of the radioactive substance were also found.

Following his escape from Russia, and before the poisoning incident, Litvinenko spent time with the documentary filmmaker Andrei Nekrasov explaining why he rebelled against the KSB special forces with whom he worked, and detailing the rise of the security forces within Russia in the last decade.

It's a fascinating focus suggesting that Russia, according to a French commentator, is run by about 100 super-rich oligarchs who surround Putin and sharpen the wealth divide between those that have amassed mind-boggling oil fortunes and those on the breadline.

What's good about this documentary is the insight it provides into how Litvinenko became a rebel, why he chose to speak out against his former bosses and his subsequent application to the UK to seek political asylum.

Nekrasov's interview with Litvinenko, and his wife Marina, provides interesting footage, as does the showing of a video that Litvinenko made of his former KSB colleagues and his KSB boss (who later calls Litvinenko 'a bastard') talking about the nefarious espionage methods they were asked to employ which disillusioned Litvinenko.

We also get an attempt by Nekrasov to imply wrongdoing by President Putin although nothing can be substantiated very easily. What's also not so good is the fact that the documentary jumps a bit between different topics. This makes it hard to follow, although I can forgive Nekrasov, as this film seems to have been a difficult one to put together given that the filmmaker's house had been turned over by anti-Litvinenko thugs. One worries for Nekrasov's safety after producing a documentary like this. You wonder whether it will get shown inside Russia - the authorities would not be too pleased by Nekrasov's allegations.

What I would have liked to see is a build-up to Litvinenko's ill-fated final meeting with his former KGB colleagues in the hotel. What motivated him to make that meeting? What did he expect to gain?

Sadly, little insight of the build-up to the tea-drinking incident is offered, and we tend to jump from the history surrounding the bombings that were pinned on the Chechens in 1999, to the interview with Litvinenko in London in exile and interviews with others in-between.

It's interesting though to draw comparisons with the ruling of the Russian state with the way control exerted by the State is exercised in other countries such as the USA - the way an implied fear of terrorism or terrorists is used as an excuse for increasing state power.

The film is available on DVD from June 30. I wish Andrei Nekrasov luck with it - it must have taken courage to make a film like this and it deserves to be seen by a wider audience.