I recently paid £3.10 (about $4.90 according to
XE.com) to see X-men 2 on the first day of release, in the evening
Thats with an NUS card.
Adult price, i think, is £4.50 ($6.15)
And thats gone up in the last year, used to be £2.50(ish) for students and £4.00 for adults
This is at a fairly new cinema in North-East England. A cinema run by the same company in Manchester was £3.50 for student, £5.00 for adults last year.
I imagine that in London its even more.