When Arthur was hunting at the beginning of the episode, Merlin's bag was on his shoulder, then it fall to his hands, but then you see it again on his shoulder after a second.
Whilst the title "Le Morte d'Arthur" is evidently supposed to be French for "Arthur's Death", the word "morte" is both misspelled and of the wrong gender. "Death" in French is "la mort". "Le Morte d'Arthur" is the correct middle French title of Sir Thomas Malory's collection of Arthurian romances, often used as the principle source of the legends.