Will

Continuity mistake: The man who was electrocuted and killed inside the hull of the spaceship is carried on a board and is laid down on the platform, just after Quatermass says "He's dead" he covers the dead man with a sheet that magically appears from nowhere between shots.

Will

Continuity mistake: At the beginning of the film when the first skull is found, the black workman is holding a cigarette in his right hand when he tosses the skull to the foreman: The next shot cuts in and the foreman says "It may be worth money" the cigarette is now in the left hand of the black workman.

Will

Character mistake: Colonel Breen theorises to Quatermass that the spaceship is an experimental German V-weapon from the second world war: However according to the story, the underground station (Hobbs End) was dug in 1927: The V-weapons first landed in London in 1944, so how was it possible for a V-weapon to land where it did underground, impacted soild in clay right next to a deep level underground railway station seventeen years later without anyone noticing at the time? Breen should realise that his theory makes no sense.

Will

Trivia: The actor who plays the Abbey Librarian in the film is played by Noel Howlett, however the same actor appeared under the name of Arthur Howlett as the church minister in the original 1957 BBC television version, that was filmed in black and white.

Will

Plot hole: When Quatermass is being admonished by the senior minister for talking to the press, Breen gives his own theory to explain the presence of the spaceship: He says that it was used a propaganda weapon in 1944 and that the figures inside were made up of scraps old skin and bone, why was he unable to explain how the hull of the spaceship was heat resistant up to 3,000 degrees and harder than diamond?

Will