Guess I'll just declare myself.. the winner? It's Private Parts, the Howard Stern biopic. American radio personality, so probably not very well known in the UK, Australia or elsewhere. Good movie, and it still holds up.
@indigit5l Ah i see its him now! It's odd you posted a film with Paul Giamatti in, last night when you posted it i was watching one of his films called Sideways (2004)
Its one of my favourite films so i certainly suggest watching it if you haven't already.