The super-sized story of burger chain McDonald's from local Californian eaterie to world-straddling fast-food colossus stars Michael Keaton as Ray Croc, the travelling salesman who realises its potential as a franchise. However, the brains behind the cost efficient patty-flipping operation - the McDonald brothers Dick and Mac (Nick Offerman, John Carroll Lynch) - find themselves firmly on the side. After watching this, perhaps you won't be loving it quite so much.
John Lee Hancock
John Carroll Lynch
Those that think that colourful clown Ronald McDonald was the shock-haired mastermind behind the global fast-food franchise might find themselves choking on their Quarter Pounders With Cheese.
McDonalds was actually founded in 1940 as a "barbecue restaurant" in the Californian town of San Bernardino by brothers Dick and Mac McDonald who hit on the idea of using production line principles - the "Speedee Service" - to increase efficiency.
They were a local success...but things really picked up with the arrival of milkshake mixer vendor Ray Croc, a sharp-suited, fast-talking salesman who saw the future of the set-up as a franchise operation, a development the brothers had half-heartedly toyed with.
Director John Lee Hancock economically sketches in the key players - Nick Offerman and John Carroll Lynch sweetly play the McDonald brothers as a resourceful double act but one totally unprepared to combat the deft machinations of a weaselly player like Croc.
He's beautifully portrayed by Keaton as a jobbing travelling salesman whose business epiphany dawns when he alone sees the potential of the burger chain and manages to persuade the brothers to, albeit reluctantly, take a chance on him.
Croc cuts both a pathetic and venal dash, living his life strictly according to the self-help records he travels with and it's only when he's see with his long-suffering wife (Dern) that you realise he may actually be a nicer guy than he appears. Yet he never is.
The acrimonious split arrives when Croc - on the advice of one of his young Turk recruits - proposes a swift expansion with the company actually owning the property lots on which the outlets are located.
The brothers settled for $2.7m...but a "handshake" agreement for a share in the profits and the San Bernardino branch to be gifted to the employees never materialised and the McDonalds were effectively written out of the picture.
It's a classic story of American corporate steamrollering with the little people flattened on the way to dishonestly-earned but unimaginable success - McDonald's restaurants are found in 118 countries around the world and serve 68 million customers each day.