It's funny watching the elements come together in this complicated scam. On one hand, the set-up isn't quite as complex as it seems, but there's an easy sense of fun in every exchange.

It's funny, it's tense, it features two great performances from two actors and the director expertly creates a web of odd tension where you actually don't know what is happening for the majority of the run time.

It’s not bad or unwatchable but despite the amplitude of the spectacle, the end result is underwhelming.

The film may be flawed, but its message is not.