Animation workflow for cinematics

Hello everyone,
I wanted to know if you know of a good tutorial on animation workflow for cinematics in Unity. I have a project where I must animate a whole movie and I wanted to know how it should be approached. In games, the set of animations is pretty limited. Characters walk, run, jump, attack, etc. In a movie, I may never use the same animation twice (unless the character is walking)... In a project like Adam, The Book of the Dead or any other cinematic scene, are the animation separated in sequences or as a big animation for each scene? Are they done directly in Unity or imported from another tool? That's the kind of things I need to know. What are the most used tools for those animations other than motion capture?

Thanks a lot.