Hancock's bland biopic offers a sanitised and sympathetic take on the burger chain's beginnings and the man who turned it into a multimillion-dollar enterprise.

One of the many pleasures in John Lee Hancock's study of the man who made McDonald's an empire is its reminder that even the simplest ideas need to be invented.

The man, played with dark relish by Michael Keaton, has the fabulous name of Ray Kroc (there is a suitably reptilian air to his grin as he says things such as: "Contracts are like hearts. They're made to be broken").

This is definitely a film to watch – not only as a real “eye-opener” into the success of the world’s most recognisable fast-food chain, but also for Keaton’s dedicated and enthusiastic performance.