In a novel, a narrator can tell us that a character rehearses a greeting alone. A film might place that rehearsal in a busy corridor where another person can hear it. The action survives, but its social setting changes.
Begin the comparison with the habit itself. What repeats, and what interrupts it? Then list who can observe it in each version. Separate the audience’s access from the access of other characters: a camera can show us a private moment without making it public inside the story.
In the invented corridor example, the accidental witness creates a possible consequence. The greeting might now seem vulnerable, comic or calculated depending on the witness’s response. None of those effects follows from visibility alone; performance, editing and surrounding scenes still matter.
Look for a later encounter between the same characters. Does the adaptation use the witnessed habit again, or does it leave the observation unresolved? That follow-up helps distinguish a new relationship from a brief visual flourish.
A useful comparison sentence names the change and its consequence: “The habit becomes something another character can react to.” This says more than declaring the film less intimate or more dramatic. It also leaves space for readers and viewers to disagree about the effect while discussing the same evidence.
Image: an editorial illustration, not a documentary photograph.
