The full ticket is £125 and includes drinks and a meal afterwards in Jury's Hotel.
The Cinema Only tickets are £35.
They claim that they are guaranteed some Star Appearances and that there will be some goodies on the night. They had originally said that it would be on the 10th so you can imagine my excitement! However, it turns out that there was some mix-up so it has had to be moved back to the 18th.
Thanks to Alatar for that!