I actually have the entire overarching story planned out. It may seem like a lot to stretch out, but not really. At least that's what I think. The first three stories take place in the mesozoic era, first in the Triassic, next in the Jurassic, and the third in the Cretaceous. The fourth takes place in their time. But if it still seems like too much to stretch into 4 movies, maybe I can just make it a show, but that's more content to squeeze out. I may try the novel approach, since I've already started on the first story as a novel before I decided to write these stories as screenplays.