Wesley R. Ball’s review published on Letterboxd:
Let's face it, there really isn't a better way to watch "Kill Bill" than this. It was originally envisioned as a massive, four hour action epic, complete with full color massacre scenes, until Tarantino declared that it was too long for mainstream audiences and decided to split it into two. To make things worse, the MPAA refused to give Kill Bill a desired R rating because of the ultra bloody scenes. To compromise, Tarantino made the offending scenes black and white, to make the blood less pronounced (I guess) and since then, the original uncut version has been all but lost.
But apparently they do still show it at festivals, and Tarantino has plans to bring the full cut to theaters this year (maybe even a bluray release). Luckily, I was able to get my hands on a limited DVD copy of the complete uncut edition, and experience it first hand.
Let me tell you, this is THE definitive way to experience Kill Bill. The story is so much better when fused as one. The black and white scenes have been colorized which, while I do enjoy black and white scenes, seemed a little unnecessary for the ultra violent parts. This made those fights so much more enjoyable, complete with shock value. I can't specifically tell you how you would be able to watch this masterpiece of a Tarantino film, so all that I can say at this point is: Hope for the best and pray for a new theatrical and home video release. I'm sure the fans are dying for a proper release.