The Imitation Game · written by Graham Moore · 2014

Intercut with his run, Turing fills sheets with designs for a large codebreaking machine.

Scene 33 of 130 · ≈ 1 min on screen · Act one

Act oneAct twoAct three

Begins 29 min into a 1:57 film

The story so farBefore scene 33

At Bletchley Park, Alan Turing must persuade a skeptical team to build a machine that can break Enigma before the war is lost, while concealing the self the law condemns.

Scenes 1–12
Turing is investigated as a guarded outsider in 1951, then enters Bletchley in 1939 looking for the puzzle he can solve.
Scenes 13–30
He sees the scale of Enigma, believes a machine can solve it, and grows isolated from colleagues who make little progress.
Just before
Scene 30
As another convoy is lost, the team discusses its limited progress; Turing reveals he is designing a machine to test every message, but the others leave him alone before he asks to join them for soup.
Scene 31
The team laughs at Alan’s awkwardness as they leave Hut 8, while he watches from the window wanting company but resigning himself to isolation.
Scene 32
Turing runs along Bletchley’s outskirts to focus his thoughts.
Scene 33
This scene

33INT. BLETCHLEY PARK - HUT 8 - DAY - SEQUENCE

Alan obsessively works on something in Hut 8, filling sheet after sheet of paper with his designs. He’s drawing SCHEMATICS... As it fills out, we see what it is:

It’s a HUGE MACHINE.