Its “Couples retreat”.
I may or may not have been completely high when I watched this, but I can tell the difference between a sex farce and a dark psychological thriller. It was definitely the latter.
Your thread title. It makes no sense. It’s a bunch of English words strung together without meaning.
What was the movie where people move car photo love inside.
It’s kinda sorta like The Incredibles. But not really.
I got nuthin’.
That’s ‘Kate Winslet Picture’
After looking through all the links, nothing has hit the mark yet (not for a lack of some heroic and/or funny attempts, for which I thank you all).
I’m just going to have to rewrite it from memory, publish it, and wait to to get hit with a copyright suit. Either that or just admit that somehow my memory has conflated ‘Couple’s Retreat’, ‘The Last Supper’, and maybe ‘The Blair Witch Project 2.’
There was a TV mini-series or short season a year or two ago that had a similar plot. One word title, I think the name of the island. Two English dudes. They were given some of the local special trippy juice. Main guy sees the missing woman while on a dive… IIRC the missing woman was the daughter of the local big-wigs.
I’m thinking Titanic, that that was only the post-shoot party.
Jurassic World?
Tatau, I think.
The Love Bug :).
Nope. American Graffiti!! 
Thank you. That was driving me nuts.
Dunno if that’s what the op was looking for.
I couldn’t even tell that the OP was asking us to identify a movie he’d seen but couldn’t remember the name of. I assumed he wanted us to help compile a list of movies in this category (which we ended up doing anyway).
On the other hand, we finally have proof that drugs turn your brain into a skillet of fried eggs.
Congrats OP!
Can I get some bacon with that?
Haunts of the Very Rich?
And Then There were None?
Beach Blanket Bingo?
Waterworld?