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Terrible Film Experience (This Is Barbicancore)
http://www.barbican.org.uk/film/event-detail.asp?ID=7725
This has the potential to be awesome, if the two guys doing the commentary aren't hopelessly unfunny.
...but also if the film turns out to be so bad it's actually bad. I wouldn't know because I've only ever watched the first 20 minutes. After that, it was a case of needing to find something - anything - else to do instead.