Respond to the request before investigating it
A short “Yes, let’s pause” is enough to begin. Turn down the sound or leave the viewing space if that is what the child needs. Avoid starting with questions about why they are upset while the scene continues behind the conversation. They may be reacting to a sound, a memory, boredom, or something they cannot name yet. You do not need a complete explanation to honor a request to stop watching entertainment.
Separate the group’s plan from the child’s choice
If siblings want to continue, help the child who is leaving find a comfortable alternative with appropriate supervision. Do not ask them to sit facing away while the sound remains loud, or make another child responsible for persuading them to stay. In a theater, stepping into the lobby may help you decide whether to return or leave. Discuss the practical arrangements quietly; the family can solve a disrupted plan without making one child the problem.
Revisit only if there is a reason
Later, ask whether they want to talk about what happened. A useful question is, “Was there something you would like us to check before another movie?” They might want a content preview, a lower volume, or simply a different kind of story. Do not turn returning to the film into a test of courage. If they choose to try it another day, agree on the same option to stop. Record the practical preference rather than labeling the child as someone who cannot handle movies.