If you are interested in VFX, computer graphics, or animation, you might want to head on over to London ACM SIGGRAPH and become a member. The team host awesome free events in London, including events with high-profile industry speakers, amazing tech wizards, and behind the scenes looks with awesome artists. Most of the tickets for the events are snapped up within an hour or less of release, so its worth becoming a member to take advantage of advance registration.