It's a convention, but in horror movies the female characters usually tend to believe easier in a supernatural event.
I think a good actor will always know the character better than anybody.
I really don't like to go for the stereotypes. I try to give you characters that you don't know until you get to know them, and [decide] how you should feel about them.
Honestly, when you're writing you try to stay on the story, on the character's mind, trying to throw stuff at them. There is danger, and the scares have to kick in the right places with the drama. And you try not to do too much to try to create those moments. Those moments create themselves.
That's kind of my ideal sequel - a movie that continues the story, takes one character and moves on, and moves forward with that character that survived with the first one.