Continuity mistake: Will runs down the stairs towards Jack's jail cell. At the bottom of the steps there is a desk and chair. When he first comes down, the chair is pushed into the corner of the desk. As Will says, "These are half pin barrel hinges," behind him, the chair is now pulled out. Will then uses that chair to balance the bench for "the right leverage to lift the door free."
Picture added & edited by A Demon
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