Inside Man

In Inside Man, Clive Owen leads a band of bank robbers who seize hostages inside a bank.

At one point, Owen takes Denzel Washington (who plays the lead cop) on a tour inside the bank, showing him the hostages, including the unruly ones.

The unruly hostages are tied up and gagged in a special room, as seen here. They're the only group of hostages who are bound and gagged like this because they "misbehaved."

Later, when the robbery is over, everybody is cuffed by the cops (at least until they figure out who's who), including Kim Director, who was one of the bank robbers.

But she gets off scot-free, because she was pretending to be a hostage. Although the bondage scenes are pretty slight, Inside Man is a great movie overall.