London
The movie 'scene' in question (alternative YouTube video) was an entire early short film — 39 seconds long — and is titled simply (as on Wikipedia here) "A Switchback Railway" from 1898 by Victorian film maker Robert William Paul. And sadly this is almost always described with very little statistics or other details as merely "at a fairground" or at IMDB as:
"Beguiling scene of adults frolicking on a small-scale roller coaster in an urban park."
Although, one local history outlet describes it as filmed nearby to the then in 1896 newly established film studio of R. W. Paul, in Muswell Hill at the Alexandra Palace, nicknamed 'Ally Pally', so in North London at 51°35′38″N 0°07′48″W.
— Ian Christie: "The birth of cinema. How a film studio in Muswell Hill played a pivotal role in pioneering cinema", Haringey Community Press, 28 March 2022.
Another alternative YouTube video described it as
"Amazing rare footage of Ally Pally's switchback railway. Made by north London film pioneer R.W. Paul in 1898.
In the background, you can see Blandford Hall (known at this time as simply the Banqueting Hall). See a still image on Harringay Online at https://hgyol.in/3cPQAla"
— Harringay Online: "Ally Pally Switchback Railway 1898", YouTube video, Mar 10, 2020.
Interestingly, Wikipedia omits this movie from its list of Films released in 1898 — although it is, as seen above, featured with its own dedicated lemma page — and to be found on Wikimedia Commons.
