I would assume this is what the Stealth tweet was referencing...
https://thelunacinema.com/thorpe-park
Outdoor cinema screening of Back to the Future and Bohemian Rhapsody during the May Bank Holiday.
Tickets start from £27.50, including 2 hours of ride time on Stealth, Dodgems, Detonator and Teacups, with the film's starting at 9pm, and the screen being set up by Stealth.
Interesting idea I guess, but no appeal to me personally