Alternative Character Interpretation: Isabel is more strong-willed than most portrayals, taking part in archery, telling Scrooge in plain terms how she feels he feels, and using a visual metaphor to emphasize it. Scrooge also does start to go after her, but by then it's too late.
The hearse on the stairs, already a random event in the book, is made even more of this when the driver wishes Scrooge a Merry Christmas.
The Hell scene, even though it's an effective Scare 'Em Straight for Scrooge. In the first place, it contradicts the earlier implication that greedy, ungenerous souls like Scrooge and Marley are condemned to wander the earth after death. Secondly, it goes against the "rules" of Scrooge's earlier travels through time, because instead of just observing "shadows" of the future, including himself, who can't see or hear him, his afterlife punishment happens directly to him as if he were already dead.
Fridge Brilliance: When Isabelle returns Ebeneezer's engagement ring to her, she makes a point of showing him how greed has taken over his life by dropping the ring on one end of his scale, and two coins on the other. The coins outweigh the ring. This does imply that Scrooge cheaped out on the ring, but then again, he bought it for her when they were both "poor and content to be so."
The coins are two pence coins (tuppence) or two pennies in pre-1971 British currency. She is saying that Scrooge doesn't care two-cents for her anymore.
Guinness' body language as Marley's Ghost when he makes his entrance is eerily similar to that of Lisa Marie's Martian Girl in Tim Burton's Mars Attacks!
Jacob Marley, in contrast to his passive and self-loathing original literary incarnation, is here reinvented as a gleefully active participant in the Three Ghosts' psychodrama for Scrooge. Not content with simply delivering the Ghosts' message to Scrooge, Marley additionally opts to drag him kicking and screaming into the sky to see the damned souls, of which he will become one if he isn't quick to mend his ways. Marley later reappears at the end of the film in Scrooge's final vision of himself in Hell, and takes a great deal of pleasure in taunting Scrooge over his failures on Earth. He takes his crestfallen partner on a tour of the inferno and informs him that he has been selected as personal clerk to Satan himself, then watches as Scrooge is bound to the point of immobility with a massive chain. At the end of the vision, Marley refuses to help Scrooge even when he begs for it, and it's this that finally scares Scrooge straight once and for all.
The Ghost of Christmas Yet To Come is, like Marley, interpreted as a far more active player than in the book. Appearing to Scrooge as the last of his guides as usual, the Ghost first takes Scrooge to his own funeral, which features all of his debtors all of his debtors celebrating his death in song form, something Scrooge even joins in with, completely misunderstanding the situation. After showing Scrooge the grieving Cratchits, the Ghost finally takes Scrooge to his own freshly-dug grave, and not satisfied with that, proceeds to physically throw him into it, dropping him to the bowels of Hell.
Nightmare Retardant: The Ghost of Christmas Yet To Come's Grim Reaper form is ridiculously fake looking, especially when Scrooge falls through the grave and you see it just... standing there.
One-Scene Wonder: Jacob Marley, as per usual. In fact, Alec Guinness' performance was so good that his part was expanded.
Questionable Casting: This choose of then 34 year old Albert Finney as Scrooge invites this from people who think he was too young for the part.
Spiritual Successor: Some view the movie of being one to the 1968 film Oliver!. It was shot on the same set and both films also shared the same cinematographer. It also helps that this film was adapted into a stage musical afterwards.
