Goofs

In rescuing Lady Linet from the Saracen's castle the Black Knight leaves his shield behind which is picked up by Palamides. When the knight reaches King Mark's castle he's got his shield back yet he's without it when he rides into Camelot..

A man in full body armour is killed by a sword thrust through the armour.

Valient during a fight is immersed in a river and gets out unaided despite being in full body armour the weight of which would have kept him under water.

The film portrays Stonehenge as a complete and un-weathered monument. By the beginning of the Middle Ages it was already 4,000 years old.

At a druid festival young women are dancing around in a gauze covering over a top and brief shorts. Not the type of clothing for the period.

Arrows pierce metal shields.

During the conclusive battle scene between the Saracens and Arthurian knights, one Arthurian combatant lies defeated and dead, only to turn his head while the knights rush past him.

At the close, King Arthur bids his trumpets sound, and the attendants impressively move in unison to do so. Examination of the guttering brazier flames behind them reveals that the film was simply reversed to obtain the effect.

In the battle at the church, when the stair and balcony railings are on fire, a combatant is knocked through a balcony railing and it breaks cleanly, revealing a straight sawed cut nearly all the way through it.

In long shots of Camelot Castle the battlements have square tops but in close ups they have pointed tops.

At a jousting tournament Sir Gwain is injured. his steward, Valiant (Alan Ladd) on his own strips him of his armour and puts it on (It would normally take at least 2 to do this) He's then lifted by block and tackle and lowered onto a horse. Later in full armour while escorting a princess he mounts a horse twice without any assistance.