I think she should play Ripley in the prequel to the Alien series, where a renegade group of Giger Aliens (Xeno-something? I can never remember) fall into a singularity or something and go back in time. These aliens would encounter a ship (or planet) where they attack a group of human colonists, but a young Ellen Ripley is within this group of humans and she's having one of it! Oh, this makes an alternate timeline so all the other films won't matter so much, unless they have transporter accidents. Or something.
I hope this part of the forum is open to the public, I really want them to make this film.
Oh wait! Dianne Fossey's daughter! She could play Dianne Fossey's daughter who ends up being one of them greedy business types and it'd be like A Christmas Carol, but with Gorillas! AWESOME!