 According to the DVD edition, the real life Col. Frost chided actor  Anthony Hopkins (qv) during the filming for running from house to  house during the battle for Arnhem. According to Hopkins, Frost told  him that a British officer would never have run but would have shown  disdain for enemy fire by walking from place to place. Hopkins  claims he tried but as soon as the firing started, instincts took  over and he ran as fast as he could.