Following the recent unveiling of Sight & Sound's once-a-decade Greatest Films of All Time poll. The British Film Institute is running a season of screenings of the top ten films at the BFI Southbank throughout September and October.

Said Sight & Sound editor Nick James of the poll results:

So here, according to hundreds of critics, historians, curators and programmers from around the world, are the Ten Greatest Films ever made, a programme that covers (or ought to) nearly everything of which the cinema is capable. And somewhere among this selection is the title that these experts have collectively decided is The Greatest Film of All Time (you’ll have to buy the September issue of the magazine to find out exactly where each film has ranked, and which has emerged triumphant). I’m not going to eulogise or describe individual titles here – each is familiar and brilliant in its own way – nor will I mention the near-misses, because this list speaks for itself. What one can say is that these titles are the result of a terrific game, an agony of decision-making that has given sleepless nights to so many passionate cinephiles and made my role feel more like that of a therapist than an editor. We at Sight & Sound are very proud of this ten-yearly task, and we’re confident that – though canons have their detractors and we can (and will) argue to the end of time about what should be in or out of the list – this canon is vital proof that cinema is an art form. Anyone who can take the time to see every one of these films will find a permanent passion for the medium is latent within them.

The BFI are to screen the top ten films in the poll during September and October at the BFI Southbank, with each of the films having a number of screenings on different dates. Fancy attending one of those?

Well here's your chance, as we have a pair of tickets to give away to a single screening of your choice.

You can find information on the poll itself here: http://bit.ly/R4dPK0

Details of the dates and times of all screenings in the season can be found here: http://bit.ly/NcVVp2

And finally, Facebook users can browse the top 100 films on the list and check to see how many you have seen here: https://www.facebook.com/BritishFilmInstitute/app_245993872187832

This should be easy for the true film fans out there, at leats those with a Twitter account (apologies to those who have steered clear of it until now).

If you have a Twitter account, then simply click on the Twitter button below to tweet your answer. The window should already contain the reply-to @cineoutsider and the hashtag #CineOutsiderComp. You'll need both to qualify.

Tweet to @cineoutsider  

All you have to do then in the 108 characters that remain is tell us which of the Sight & Sound poll's top ten films you would like to see most and why. Answers will have to be concise but should be imaginative ("because it's brilliant" is not going to cut it) and winning tickets will be awarded to the reply that impresses us the most. The Top ten films are listed in the right-hand column, or you can browse the Top 50 here: http://www.bfi.org.uk/news/50-greatest-films-all-time

And remember, its not about what film you choose, but the reason you give for choosing it. And that's all there is to it.

The competition closes at midnight on 10th September 2012.

Oh, by the way, please do not create multiple Twitter accounts to enter several times. Twitter apparently don't take kindly to this and can suspend all accounts, and we'll put you on our wall of cheating scumbags. And you wouldn't want that, would you.