I will be honest, at points this film looked like it was a low budget, straight to DVD / streaming movie. This is thanks to the awful cgi for the outside of the train, and also the horrible shakey cam during some of the fight scenes.

Other than that it is a great movie. It was so fun to see the characters explore the train, one section at a time. There were some bold character moments towards the end which left me shocked, and it definitely added to how impactful the story was as a whole. I feel like the ending was super dumb, but it's easy to overlook I guess!