Corrected entry: Ms. Teschmacher comes to rescue Lex Luther and Otis from prison. That's okay, except that in the first movie, Lex accidentally shot a missile at Hackensack, New Jersey. When Ms. Teschmacher informs him that she has family in Hackensack, he just looks at his watch, shakes his head, and walks away. In other words, he doesn't care if her family lives or not. (That's why she saves Superman in part I.) Why, after the disloyalty of Lex, would she come back to rescue him from prison in Superman II?
Corrected entry: Marlon Brando was offered the opportunity to reprise his role as Jor-El from the first film, but he was unwilling to reprise his role for this film. As a result, we only see his hand at the beginning of Superman II, and we see only Superman's mom in the recap footage from Superman. Later in the movie, we only see Superman's mom in the crystal recordings for the same reason.
Corrected entry: After Clark Kent learns about Zod in the diner and after he was beaten up by that guy in the diner, he realizes that he must get his powers back. So, he walks all the way from the diner to the Fortress of Solitude, a distance of several thousand miles. With no food, no water, no transportation, no money, and just a coat, he manages to walk through miles of snow, ice, and freezing cold to get to the Fortress of Solitude. How does he do this? I don't think any human being could pull this off, and at this stage that's just what he is.
Corrected entry: When the H-bomb explodes in space, you can see the explosion happen behind the intact bomb, instead of originating from it.
Corrected entry: When the 3 kryptonians leave the Moon, Non throws the 2 flags in the space module. Note that the gravity works normally when the flags fall, like it does on Earth.
Corrected entry: In the beginning of the movie, Clark Kent is hit by a taxi cab when crossing the street. The taxi cab is severely damaged in the front, but Clark keeps walking across the street. Look at the damage made on the cab. Where's the damage on Clark's suit or pants? The material used in his working suit must have been as strong as the material used in his Superman suit.
Corrected entry: Just after Lois grabs the branch in the river, she is upstream of the branch in one shot, and downstream the next. In these same two shots, the branch goes from being perpendicular to the water's flow to being parallel to it. (00:48:45)
Corrected entry: It seems strange that it is business as usual when there are so many explosions, let alone it is night time and everyone is wearing business attire.
Corrected entry: In the beginning of the movie, Clark Kent is hit by a taxi cab when crossing the street. The taxi cub is severely damaged in the front, but Clark Kent keeps walking across the street. No one, except the taxi driver, seems to notice this ... not even Lois Lane. How is that possible?. (Later on in the movie, Lois doesn't even see the connection between this incident and the fact that Clark is Superman.)
Corrected entry: In the scene at the Fortress of Solitude near the end, Lex Luthor mentions that Superman was safe in the chamber while the lights were on out of the chamber. How would he know, since Lois was the one to see Superman give up his powers for her by entering the chamber earlier in the movie?