First of all, I apologise in advance for the abject ignorance that I am about to display.
My wife and I would like to buy a green screen as a Christmas present for a member of our family who is into making videos as a hobby, and who would like to expand her video editing capability. Having done a rummage around the internet, they seem to cost anywhere from about £20 for a small piece of green cloth to hundreds of pounds for a large piece of green cloth with a frame. I think that a frame is probably necessary, but having no knowledge of these things I'm having trouble finding the balance between "not fit for purpose" and "overkill and waste of money". Could anybody help to point me in the right direction, please? I suppose I'm basically looking for something that will provide a 20-year-old hobbyist with a nice, useful Christmas present without going ridiculously overboard.
Thank you in advance and, again, apologies for not having the slightest idea what I'm talking about.