Train To Busan
Simple character arcs with numerous characters, and zombies on a train... and a little twist at the end too.
Loved some of the characters in this as well.
The treatment is disparate with them which is cool: Bad father and husband with a kid in tow... father-to-be and mother-to-be... a couple young lovers, both of which are a little naïve... an antagonist who actually has a point...
... and they all go through a learning curve.
There's a 30 second scene that reminded me of the scenes from
The Mist too when people on the train become 2 "factions"...
Fun to watch, and like the OP said in the Busan Thread, the aesthetic is like watching the zombies from World War Z... this is far better though. They also have a couple traits with the zombies with their sight and sound which is a super cool addition.
The special effects are also solid. Good CGI, good makeup effects and the zombie choreography is seemingly done using actual real and proper dancers, martial artists and gymnasts and stuff. They contort and move so weirdly, it has to be a profession.
Edit/addition: Kim Su-an as
Su-an, the Daughter of the main guy... what a remarkable little actress. She's got a majorly successful future ahead of her
Not quite the 100% magic marker... some of it is "Seen it before" territory so it loses a few points.
But, with a zombie movie this good, in this day and age?
My rating: 94%