Paper Work - S6-E11
Other mistake: When the foreman and secretary are rescued at the warehouse fire, two shots after we see the foreman climbing down the ladder, there's a shot of the grey steel drums marked 'acetone' with two lying on their sides on a wood pallet, while the guys hose down the fire. What's funny is that in the next shot there's a disposable plastic cup that has suddenly appeared on that pallet. Obviously while shooting the different takes one of the actors or crew members left their cup on the pallet before they resumed filming.