It seems that the film screening and discussion that was supposed to take place at the University of Westminster is no longer listed on their website. As shown below in this screenshot, this page shows what was supposed to happen on the 14th of this month before being removed:

Unfortunately, the page has been deleted and they did not give any reason why the page has been removed or if the event has been canceled. Was this removal due to the pressure from Kagame and RPF in trying to silence even British citizens? This screening has been also removed from the University event page http://www.westminster.ac.uk/csd/events.

This link shows the page that has been removed by the University. CLICK HERE TO SEE THE PAGE THAT HAS BEEN REMOVED