Just a word of warning, me and my friends made our way to space without ID (we had not taken ID with us before, or anywhere, and it had been fine) One bouncer decided to be an arse because we went the wrong way around the queue railings by accident, and wouldn;t let us in without ID. We simply walked away and made sure he wasn't looking and then lined up at the other entrance and got in no problem at all, so try that before going all the way back to get ID!