I believe most of the movies and TV shows(99%) are imaginary and virtual. They can be having realistic story. But some scenes are not believable. They are not much realistic. Most of the movie and TV shows can be questioned under realism.
I'm not quite sure what "realism" alludes to in this context, but it's a vague term that's going to apply to questions all over the map (see the questions using that tag now).
Questions tagged realism are probably better suited to one of the legitimate subjects of film study like [plot-inconsistency] or perhaps [suspension-of-disbelief]. I would try and get rid of this tag all together. I'm not sure the term "realism" is going to elicit a useful categorization of content, in this context.