Happy Birthday Ipcress File the film ....

Fifty years ago today the film of Len Deighton's The Ipcress File was premiered in Leicester Square. To celebrate, Deighton's biographer - and friend of the Deighton Dossier - Edward Milward-Oliver has, together with designer Brillo, created a lovely movie infographic about the film including some new insights never before shared.

Check out the moviegraphic here and share your thoughts on Twitter using the #ipcress50 hashtag.

Brillo's also produced some little postcards which can be shared on Twitter and are reproduced below.

Tell us - why does The Ipcress File stand the test of time?