The poetry quoted by the narrator at the end of the film is Part 40 of A.E. Housman's "A Shropshire Lad": Into my heart an air that kills From yon far country blows: What are those blue remembered hills, What spires, what farms are those? That is the land of lost content, I see it shining plain, The happy highways where I went And cannot come again.
Jenny Agutter was embarrassed when doing the scene of her swimming naked in the lake, so as many as possible of the crew were sent away. When shooting was done they returned, stripped naked, and went for a swim.
Luc Roeg was actually sun-burnt in the scene where the aboriginal boy treats his back by rubbing him with fat from a wild boar. Director Nicolas Roeg thought it would make a good scene for the film so he picked up the camera and shot it.