I also noticed the show posters throughout the theater. In particular, I remember seeing a poster for a play called Thai Girl.
During the show, Derren Brown drew a pretty good portrait of Marilyn Monroe.
In Act 2, the audience member question he correctly guessed was a man in his 30s wondering whether he'd get his pilot's license. Derren also guessed he was a former gymnast (which was correct!) My friend and I were in awe!
While Derren Brown's head was covered, he picked on a lady who was there with her boyfriend. Derren was hesitant to tell us her secret but then stated that her secret is she's worried her boyfriend may know about her girlfriend. It was shocking to see her boyfriend's face after that remark. The entire audience was in awe!
Yes, my friend and I did think that there's a possibility both people were planted in the audience but I don't know... I don't think they were but certainly it's possible.
What baffled us was the last bit after the video. Wow! No idea how Derren does it every night but we were certainly entertained!!!