I recall seeing a trailer a while ago on IMDb (I believe with a notable actress but I cannot be sure) which featured a couple, with a small swimming pool - blue tiling in their back garden.
There was also some sort of time loop or something of that nature, as I recall them walking in and out of the garden, and there being some confusion over the timeline.
This major plot point seemed to have been left somewhat of a mystery in the trailer understandably, but I am certain something of a supernatural nature of that kind was a plot detail.
I hope this is not too vague to identify this movie. Definitely in English, and 99% sure an American film. It was also certainly made in the last five years, in colour.
The time period within the film itself seems to have been set in modern day, that is, the time period of the making of the film itself.
There were two doors on one side of the wall of the house facing the pool I believe. In addition, the trailer I believe exclusively shows the garden with the pool, and this indoor area mostly, and nothing else.
- Film set in modern day (time period of making of the film); almost certainly American and made in the last five years. Definitely featured on the front page of IDMb trailers at some point.
- Trailer almost exclusively shows a back garden with a swimming pool with blue tiling, and an area indoors with two doors accessing it. Possibly a kitchen.
- Film certainly features a couple, that is adult male and female.
- A plot detail which seemed somewhat mysterious in the trailer is some confusion arising with these two doors, and the characters entering and exiting. Fairly certain there is some play on timelines, e.g. a time loop.
- In English, made in colour.