I’m aware of the NCIS scenes, what else you guys got?
One of the GIJoe movies ends with an underwater arctic base being crushed by ice that is dislodged from a bomb blast on the ice shelf above. Neat except ice doesn’t sink. I’m sure there are all manner of inaccuracy in those movies but that one really stuck with me.
Ice sinks to a certain point. If being attached to the shelf was holding that ice up higher than it would float, it’ll sink.
Don’t know if the movie shows it sinking further than that though, but the general assertion that ice doesn’t sink at all is definitely mistaken.