What are the key differences between the movie and TV versions of Quatermass and the Pit?

Off the top of my head, the stories are essentially the same, with the capsule being discovered, the Martian remains, the telepathic 'sightings' of the ghost Martians, the links to the devil via the aliens' appearance and the inscriptions on the craft.

The only significant difference I can recall is the ending. In the original BBC series, Quatermass attempts to destroy the Martian apparition with a heavy iron chain which is grounded. He misses, and the soldier helping him sacrifices himself to complete the task.

In the Hammer version, Quatermass climbs into a crane and swings the arm around into the apparition, shorting it out and ending the threat.

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