At the 28:50 mark when Pres. Bennett's son is talking out back to Coop the cook he is sitting on a milk crate with Lucerne clearly stamped on the side. Lucerne as most people know at the time of shooting was a trademark of the Safeway grocery chain, though the movies was shot in BC Canada where Safeway is present, Safeway is not present at or near Camp David where this scene was set.