A Perfect World

Plot hole: There's a number of strange things about Butch's and Terry's escape: When the grid falls down the very loud noise passes unnoticed. After they climb down the tied bedsheets Butch pulls once and it comes down, although no-one tied it loose. And finally, their escape route ended within the prison walls, and they needed to kidnap the clerk, who had come back into the prison to get some papers, for the escape in his car, something which wasn't planable at all.