Then you need to think laterally about The Jacket.
Is Jack Starks an angel, sent to save the lives of Jackie and her mother? Or, is Jackie an angel sent to save Jack? Is he really travelling through time, or is he simply having delusions brought on by the drugs?
There are a lot of films whose concepts get lost between the screenplay and the screen. I feel like The Hole is one of those films. As far as being "trapped" in the stereotypical roles, I just don't see it. They just seemed to be stereotypes. They were all self-serving snobs. I didn't really see the characters shift at all, save for her becoming a murderous sociopath (rather than simply a sociopath) at the end.
"Purgatory's kind of like the in-betweeny one. You weren't really shit, but you weren't all that great either. Like Tottenham."
I'll try being nicer...if you'll try being smarter.