Show don't tell. This is a common mantra for script writers. It's not a bad one either. In fact, it's a rocking good one. "I'm watching this movie/TV show/play, so show me what happens don't tell me!" We - the audience - want to see the conflict. So Show-don't-tell is an admonition against blatant exposition [...]
Plays, TV, and film scripts. Thoughts about writing and storytelling
Charlie Lyons Writes 