Such an up-and-down film, in terms of quality.

I've personally always found 'The Sword in the Stone' uninteresting. The premise is very light, there's barely enough to support the run time - shown by the fact that just (roughly) 5-10 minutes of the film are about its title, the rest is build-up/filler with repeated gags and repetitive story beats.

That's not to say the film doesn't have positives, it does. I enjoy the humour, the idea of teaching Arthur and Merlin himself. However, that's all hampered by the aforementioned issues.

I think the plot needs more to it, perhaps Merlin could hide his magic more from Arthur though still teach him whilst they travel cross-country to the sword - as opposed to staying in one location for the vast majority of the production. I assume it's sticking to the source material.

Karl Swenson is good as Merlin, pretty much the only great performance here; though Martha Wentworth as Madam Mim is quite amusing.

I thought about giving this a lower rating, but I think there is enough there for it not to be deemed a poor film - I just see the greater potential for this story, hopefully the future live-action will realise it.