Kiepie's post didn't capture the entire context. Here's the full text:
So you see, it represents not just a discounted ticket price, but a value-added offering - for students only. I'm guessing that this forum may not be predominantly composed of that demographic.
I understand that SK regards each of their venues in a two-tier system. The 'Classic' cinemas will have you pay R 45,00 for a single ticket, while the 'Junction' sites are substantially less. Add to that the Discovery discount (applies to members of Discovery Vitality only - monthly fee) and the Edgars discount (applies to members of th Edgars Club only - monthly fee), and you price points all over the place.
Nu Metro Cinemas doesn't tier its sites - there is one price across the board, R 29,50, which was reduced from the R 42,00 price point back when 'discount clubs' were deemed too confusing.
As for this particular promotion,
Student Night, it is an offering to students that represents both a student discount, and a substantial value-added event. If you're not a student, sorry, it's not for you

And, while Nu Metro doesn't tier its sites, the Student Night events will be hosted at the top site in each region.
As a parting note, there is a lot of complaining about movie ticket prices in South Africa, even though the most expensive tickets you can get (R 45,00 at Ster-Kinekor Classic cinemas) is way below what people from other Western economies are paying for the same product.
Ok, hope that clears up the confusion. I'm sure not everyone will be satisfied with this response, but there it is.