Question: Tania Saulnier is a Canadian actress, perhaps best known for her role in a 2006 American science fiction-comedy horror film that was the directoral debut of who?
Sentence (from "Slither (2006 film)"): Slither is a 2006 American science fiction-comedy horror film written and directed by James Gunn in his directoral debut, and starring Nathan Fillion, Elizabeth Banks, Gregg Henry, and Michael Rooker.
Relevant evidence: Yes