Goofs

In the flashback scenes of Imhotep being mummified, his legs are bandaged together. They are still bound together in long shots of the mummy in his sarcophagus (which was a dummy). But when he comes to life, his legs are bandaged separately, allowing him to walk. Also, at the beginning of the wrapping, his arms are bound to his chest, but at the end, they are shown wrapped separately, allowing him to reach for the scroll.

When Muller shows Frank the Isis charm in the car, the closeup is a reused shot from earlier, which does not match the way Muller holds the charm in the longer shots.

When Helen is first seen, she is smoking a cigarette in a holder. When she turns from the camera, she raises it to her mouth; in the next shot, it's nowhere to be seen.

(At about 41 mins) When Sir Joseph is preparing to burn the Scroll of Thoth, he puts it in the fireplace with the end pointing out toward the room, then produces a box of matches. A moment later, as he succumbs to the Mummy's spell and dies, the scroll is now aligned sideways across the fireplace. Shortly afterward, when the Nubian servant comes to retrieve the scroll, it has returned to its original position.

According to the newspaper article detailing the findings, the man who helped them to find the site is named "Ardath Bey." (See also trivia, this is an anagram of "Death by Ra.") But many other sources, including the subtitles/captions on home video releases, use the spelling "Ardeth Bay."

Pharaoh is misspelled in both the opening and closing credits as "pharoh".

The film was copyrighted 14 December 1932, but on the opening title it bears a 1933 (MCMXXXIII) copyright statement, apparently because the title credits were designed in advance, in anticipation of a later release.

Ralph Norton refers to the Egyptian goddess Isis's "vestal virgins". Only the Roman goddess Vesta had Vestal Virgins, and that was considerably after the period of Imhotep. As an archaeologist, Norton should have known this.

The pharaoh is depicted as having long hair and a long beard resembling the kings of ancient Persia. As can be seen in the remains of actual pharaohs, they had medium to short-cropped hair.

The Union Jack, flag of the United Kingdom, is flying upside down as the camera pans to the 'Field Expedition... 1932...' sign.

The "pan" across Cairo that introduces the character of Helen at the party, is actually a photograph of Cairo attached to a "drum" that is turned clockwise which gives the effect of being a pan. The effect is spoiled by the fact the photo was doubled up and is repeated in the "pan".

Helen, compelled by Ardath Bey (Imhotep), takes a cab to the Cairo Museum. The cab pulls up alongside the car in which the Whemples are about to leave. Tire tracks, exactly matching those of the cab, are visible in the dirt drive near the Whemples' car. These tracks were evidently left when the cab's approach was rehearsed.

When Helen leaves the dance under Ardeth's spell, she gets into a cab. When that cab arrives at the destination, she simply gets out, and the driver never asks for his fare.

When Frank gets up to open the door for the nurse , he throws his lit cigarette into a full ashtray.

When Ardeth Bay's eyes light up , not only is the light visible in his eyes , back the room itself lights up as well .

Ardath Bey prays to Isis in King James English.

In the enhanced audio version of the film, when Ralph Norton reads the Scroll of Thoth, he can be heard repeating the words "Ra-Breath-Life". This is not what the scroll apparently says (as indicated by the title card) nor is it what Imhotep says when he reads the scroll later in the museum.

When Imhotep breaks the glass in the display case with his bare hand, there is clearly no glass there, just the sound effect.

When he is informed of the death of the museum guard, Sir Joseph Whemple is heard to say "hello" when he picks up the phone, but his mouth doesn't move.

Imhotep has been sentenced to "the Nameless Death", yet his name is still inscribed on his coffin. The ancient Egyptians had chisels and should have been able to destroy the glyphs on the coffin that make up Imhotep's name, but it is untouched when his mummy is found.