Goofs

Position of Ligeia's arms when lying in bed. When Rowena fall on her her arms are in a position like holding something. Few minutes later, when Verden take a look on the bed hidden by the black curtains, their arms are in other position.

When Verden asks Rowena why she came, his position by the table changed from the shot before.

In spite of continued reference to his aversion to sunlight, Verden Fell neither wears his special glasses outside on the day of his wedding, nor on the honeymoon scenes at Stonehenge. However, he starts wearing them again on returning to the Abbey, a detail given special emphasis. This suggests that his aversion is a psychosomatic neurosis and that he does not need them when he is happy and away from Ligeia's baleful influence.

Christopher explains to Verden that the abbey can't be sold because it was in Ligeia's name and nobody has issued a certificate attesting that she's dead. But she died in 1821; death certificates weren't issued in Britain until 1837. (Modern genealogists have to make do with parish burial records before that date.)

At about 25 minutes, and throughout the scene, the cobweb-covered sphere catches shadows of equipment rapidly shifted as Verden Fell moves about.

Boom mic shadow visible on the far wall at 27:24.