In the film's third segment, the bottom half of the dead body of Amelia is shown wearing a short blue robe. In the third segment of the first film, Trilogy of Terror (1975), Amelia wore a short white robe.
At the beginning of the film's third segment, the apartment in it is obviously not the same one from the third segment of the first film, Trilogy of Terror (1975). It is much larger and more modern, with a second floor in it that it originally did not have.
In the film's first segment, when Ben opens the secret compartment of the watch, it is opened differently in the next shot.
In the film's second segment, when Laura is approached by her lawyer, the shots in the scene have clear discontinuity regarding her facial expressions.
In the film's third segment, when the Zuni fetish doll uses an exhibit with a bow and arrow to kill the old museum security guard, that would not have been possible as the arrow would not have been shot out by any kind of force.
In the film's third segment, the old museum security guard's eyes are clearly moving while he is supposed to be dead in the second shot of him in it. Later, when the boyfriend arrives, he himself can be seen moving.
In the film's second segment, when Bobby gets shot by his mother, Laura, he would have just fallen onto the floor and in no way would have fallen through the window, which was a good distance behind him and which would have required a lot more force to break its glass panes.
In the film's third segment, one of the museum security guards is seen reading a "Dark Shadows" comic book. However, the comic book is from the 1990s, was released by Innovation Comics (a now-defunct comic book company that did not exist at the time that this segment took place) and the story in it is a continuation of the short-lived 1991 second version of the original 1966-1971 cult classic soap opera of the same name. The segment is supposed to be taking place in the early 1970s, when the first film's third segment (to which it is a sequel) took place.
In the film's third segment, a wire pulling a suit of armor down the museum stairs is clearly visible at one point.