This one has been mentioned in the thread before, way back in 2013 (nearly 10 years ago!), but there weren't any screenshots, so here we go.
In
Cast Away, Tom Hanks' character has a SAK attached to his keys. He uses it early in the movie to open a package...
...and to unwrap a gift from his girlfriend.
Before boarding his flight, he leaves the keys (and knife) with his girlfriend.
Near the end of the film, the keys are returned to him, and he examines the knife, which, of course, would have been nice to have when he was stranded on an island.
There isn't much to go on if you wanted to identify the model (and I'm not very good at that when it comes to SAKs anyways). I suppose it's notable that it's a full-size SAK (91mm?), as opposed to a Classic which you might expect to find attached to keys. It appears to have two layers, and the only tools you really get a look at are the main blade and the corkscrew.