THIS REVIEW CONTAINS SPOILERS!!!
Erm, okay so I did enjoy it but there were some weird parts of the movie??
Like, what was that weird 3D tentacle porn thing in the middle? And where did Upper Three come from? No backstory or any hint of him being in the movie and then he just appeared? How about Tanjiro getting stabbed... By a needle? Okay I get it's an anime and it's not meant to be realistic but how can he survive far greater injuries in the anime, not to mention Rengoku literally getting a fist through his body and still surviving for his end speech but Tanjiro severely wounded from a needle stab?
Also, the crying at the end was so dramatic and long. I was so sad when Rengoku died but damn, after a while I was like, okay I'm over it.
But overall? Animation? Amazing. Fight scenes? So good. There were definitely parts I enjoyed and if the previously mentioned plot holes were patched over, it would genuinely be 5 stars!