Ah the dark art of the movie poster. We've written a fair deal on how much we love a good one and also how much we loathe a dodgy one but what's the formula for what really works?

This rather smart infographic takes a look at what poster designs were most popular in the last year and then dissects the top 10 movies at the box office to see what has worked the most.

Conclusions? Well, it's all about Sans Serif and cooler colours. Oh and Daniel Radcliffe's face.

Thanks to the clever guys at Colourlovers.com for the image.