TLDR: listen to the album and skip the movie.

Full review:
Great music (Ado is a talented singer), and animation for One Piece is, as always, good. This one is particularly colorful.

Unfortunately, it was crippled by a plot that could've been a 14 year old girl's self-insert fanfiction: Shanks' daughter, Luffy's childhood friend, wanted by the World Government for insanely powerful abilities, and events designed to cause maximum angst for the Red-Hair Pirates and Luffy.

I mean, really. Who wrote this and called it good?? The plot would've had significantly more impact if she'd been a stranger.

“Your Soul Is More Important Than Your Body, Isn’t It? In The New Age, Every Soul Will Live Forever.”

Having Shanks show up in One Piece is always epic. He's so mysterious and we don't know a lot about him but I know I'm always hyped when he shows up and to have a movie where he's in, even if it is for a short amount of time is still hype. And for them to show us more about the crew and a tiny bit of Shanks's past is still epic.

Again, the animation is solid like with most Shounen Anime movies and I always smile while watching the Straw Hat Crew. Throw in Koby, Fujitora, Katakuri, Blueno, Bepo, Bartolomeo, Trafalgar Law, Kizaru and Sakazuki, and you have some great characters showing up alongside the Straw Hats and the Red-Haired Pirates!

If you have seen One Piece of read the manga you will enjoy this one! If you aren't familiar with the source material I wouldn't recommend Film Red.

Good animation, beautiful music (was following Ado quite a bit and got quite hyped by the songs).
Yeaah...the movie is a bit shallow in depth and has a very high pacing compared to the tv show.
Was my first anime movie I watched in the cinema. The whole soundstage was impressive.
I would at least recommend if you like Ado's voice/music and One Piece in general. It's not really for everyone.

Often confusing, many things happened without a sound explanation, and the pirate theme could not be felt much. It did not really work as a gateway for the anime series.

I'm far removed from where the manga and TV series are in story (been about 20 years nearly since I was current...) so I didn't know a lot of the characters, but I've watched the last few movies at the cinema since they're usually self-contained enough and this was no exception. Music was great, animation quality is very high (with the exception of some wonky CG golems later on) and Luffy is still as lovable as ever. Worth a watch for sure!

MY FIRST CINEMA MOVIE
unfortunately ain't that great, most of it was just music, the fight scenes weren't enough at all xc plot was a bit shallow n silly .. it was more cartoonish than anime
however, the animation was amazing