Don't confuse a short skit or animation with a feature-length film. There's a lot of ideas out there that would work great for a short Youtube video, that simply won't work if bloated to a 1.5hr runtime.
Oh yeah.. This would be weird to see, especially if there was a voice. Though I kinda like the scheme in this youtube Machima
I like this idea, it could work as the beginning and the end of the game, start as spawning in whichever biome, and the climax could be when Steve is fighting the Ender dragon. Also Morgan Freeman narration A+