Did you get to keep the pins as souvenirs or were they the 'ticket' you had to hand over for entrance?
Of course - we got to wear the pins and keep them! And one of each pair of invitees/winners got to keep the cardboard ticket they came with.
This event was double the size (two cinemas of the multiplex) of the gala premiere that the same publicity team ran a few months ago for "Hansel & Gretel: Witch Hunters". For that they had a red-bloodstained "white carpet", a long tunnel walk-through (with live caged actors), photo op sets, free alcoholic drink ticket, DJ, live Twitter feed, big screen for the celebs' arrivals. etc.
This time we had a traditional red carpet, and very screen-accurate sets to walk through - a long corridor, working doors, brig, observation deck, huge projections of future London and the bridge of the USS Enterprise, two free drink tickets - and a female DJ looking exactly like Carol Marcus!