Starter for Ten

David Nicholls wrote the novel Starter for Ten about a working class kid attending a posh British university in the 80s... no surprise that it's a fiction based on personal experience. It's been made into a film and evidently screened in Toronto, though who knows when it will show up in the US.
Here's the only trailer I seem to be able to find and here's David Nicholls talking about the book and how he came to write a novel about "a bit of a prat" who competes on University Challenge.