Can you get a generic cinema voucher?

[Medibeagle]

Can you get a general cinema voucher like you can book tokens or theater tokens? I want to make a cinema basket for my MIL with some vouchers, nice popcorn, a dvd or two etc. Cant think of anything else to put in.

Cineworld do vouchers or a xmas box with 2 tickets, voucher for food and drink and some chocolate I think for £20.

I think they are related to the particular chain so not universal like book tokens.
Do you know her local cinema?

I will have to do some stealth research, she is chatty so shouldn't be too tricky! Thanks everyone.