Sometimes the biggest gift a film can give us is to force us back into the real world rather than letting us escape.
Many people watch movies as a respite from the stresses of life, but that often has a trivializing effect. When film is used primarily as a medium for entertainment, it follows that we derive pleasure from crime, violence, human suffering, and the like.
The German movie Requiem is about demonic possession, yet in spite of its subject matter, it’s a serious, wrenching piece. And because of its subject matter, it’s all the more effective, as the audience isn’t expecting to be challenged.

That's Just Nitpicking, Isn't It?