Episode #4.1 - S4-E1
Other mistake: Luther says "Budge up." The subtitles say "By jump." (The correct subtitle is in the DVD extras). (00:40:40)
Episode #4.2 - S4-E2
Other mistake: One character says "Is this another appeal to my maudlin East-End heart?" The subtitles say "eastern heart." (00:29:00)
