Oh, its also listed here:--
https://sales.talktalk.co.uk/product/tv/plustv
Sky Movies Boost
Choose from over 900 movies on demand across 11 Sky Movies channels. All uncut and completely ad free.
Over 900 movies available to watch on demand from across all Sky Movies channels
Nowhere on any of this does it mention "You have to buy them serperate on sky store"....