In the movie "A Man's Gotta Do" the lead character drives a V8 W116 and its seen regularly during the movie, both interior and exterior shots of the MB. Looks in top nick. The movie is pretty good as well once you get into it.
In the movie "Looking for Alibrandi" the main character's best school friend drives a W116 of some description, probably a 6cyl as it doesn't sound like a V8. Good to see teens picking up W116s for their 1st cars when they finish school.
In the movie "The Gods must be Crazy" security guards comandeer a W116 (again, sounds like a 6 cyl, not a V8 but since it was owned by a parliamentarian I'd imagine they'd own a V8) and way after trying to catch Sam Botha's gang the W116 runs out of petrol to the derision of the security guards "Gus Guzzler!". Slightly later you see the security standing to attention as their senior arrives yet does little to help them.... you'd have to see it to appreciate it.
On a non-W116 note, in Mad Max, the original one from 1979, at one point you can clearly see a customised Holden panel van which has W116 lights and indicators on it.
I'll update this thread as I see more W116s in movies, TV shows and video clips.
Ian.