An MI5 spy catcher in post-war Britain

A young Winston Churchill, opposite Mel Gibson's Professor

Loving her in silence, having broken off his engagement

Another spy, obsessed with secrets and their presentation

Improvising "the pearls" with Harvey Keitel in a French chateau

An insufferable boaster, shot in Cape Town

Tending the wounded alongside Sarah Lancashire

Conceived, shot and edited in 48 hours — fully improvised

Screaming into the wind — filming in the Scottish rain, at night