It showed Armstrong's view out his window, you could see the agena, the earth and the nose of teh Gemini capsule as they were approaching for docking.

There was some footage of them docked with the agena, then it cut straight to seeing earth/black/sun/earth/black/sun pass behind the agena. Then the agena was released, and you could see the flashing of shadow/light on the nose of the capsule increase in rate, then the film ran out.

Armstrong was lauded for thinking to turn on the camera once they realised something was up.

The narrator and Gene Kranz both stated that the footage was rarely seen.

MrPex