There is evidence to show that Mckee's thought of the 'controlling idea' is found in a lot of the film genres.
After watching a few western movies, including Shanghai Noon. I had found that with many western films, the controlling idea tends to be that loyalty is shown to their empresses.
I'm not really a fan of science fiction, but with two films I've watched I have found that there is the idea of possible alternative worlds or futures and controlling the world of some sort e.g. robots.
Rom coms tend to be centered around 'true love', they're light hearted and have humerous plotlines. This controlling idea was clear in Friends With Benefits, even though they were trying to avoid the typical Hollywood romantic comedy, Dylan and Jamie found that adding sex to their friendship lead to complications and at the end of the film they fell in love, it definitely ticked all the boxes. In contrast, gangster films, such as The Godfather, American Dream and Get Rich or Die Tryin' all have the controlling idea of protecting those closests to them and when that fails, they tend to seek revenge by falling into the wrong crowd. After realising the errors in their way, they realise they want to change it but by then it's too late
Friends with Benefits
The Godfather