LogFAQs > #979035460

I think the reason they don't do it is because they're worried about people sneaking in during the intermission.

I don't think someone waiting in the lobby would be able to know that the people leaving the show room would be going back into it. And they would still have to get past the ticket-taker. Further still, they would call attention to themselves if they sat in the lobby for two hours waiting for people to leave the showroom so that they could slip in with the group. It would be easier to just pay for a movie than to sit in the lobby for an hour and a half for two hours and steal the last half of it.

If somebody wants to steal on principle alone, they'll find a way to do it.