In the scene where Superman is flying with Lois Lane, they climb up through the clouds, with the moon in the background. Their shadow appears directly below them on the clouds. Is there another moon we don't know about? [The light source of the shadow is the reflection of the moonlight from the clouds above them.]

After Superman has reversed time the Hoover Dam reverts to its previous undamaged state as it should, but Jimmy Olsen should then have been replaced back on the dam. Instead he interrupts the potential kiss between Lois and Superman and complains of being abandoned by Superman in the desert. [Superman didn't undo any damage, he merely traveled back in time to a point before Lois's car gets caught in the crack. So the Hoover Dam still got destroyed and he still stranded Jimmy in the desert.]

This occurs just after Superman saves the town in the valley from being washed away by the flood from the broken dam. He stops and listens, and hears Lois. Just before the scene changes and he goes to rescue her, his lips move as though he is saying "Lois" but no audio is heard. No subtitle is on the DVD either. [So, he mouths her name when he hears her. Nothing wrong with that - people don't always speak out loud.]

When Superman saves the train from derailing during the earthquake, he places his body between the tracks, hold up one rail with his right hand, and uses his left arm and side as the other rail. But even Superman can't change physics. Train wheels have a flange that goes on the inside of the rail to keep it from slipping off the rail. (Go look at your model train set). Since Superman is indestructible, this flange would hit him and derail the train (Perhaps this is why he ducks his head). [And when he grabs the plane to help it fly, he would punch right through the skin. And, and, and... Every single thing he does in the movie is against the laws of our reality, but some leeway has to be given for movies like this.]

Lex Luthor claims the yield of each bomb is 500 megatons, and that the second one is headed for Hackensack, NJ. Given Hackensack's proximity to Metropolis, a 500 megaton bomb would wipe out the entire city, Lex Luthor included. [This is part of the plan in case Superman gets free of the Kryptonite necklace. He states that Superman cannot stop both of the missiles, and by sending one close to Metropolis, this pretty much guarantees that Superman will have to stop the one closest to him first to have any chance at stopping the other one. As seen in the movie, it proves not to be enough time indeed, as the missile detonates in California.]

When Superman reverses time and saves Lois, he never actually prevents the missiles from hitting the San Andreas fault, therefore he did not stop the earthquakes, therefore shouldn't the ground still open up behind her car? [Superman reversed time to a point where he was able to stop BOTH missiles. Presumably he went back to the point where he was originally stopping the first one, and went to stop the second one. So for a brief period there were two of him.]

When Lois Lane falls out of the helicopter we assume the building she is on is the Daily Planet since we have no indication she left, and Clark exits the same building. However, the building differs from the one pictured before the opening credits (they have different roof styles). [The building in the opening credits was from 1938. It is perfectly plausible that the offices of a major metropolitan newspaper changed in their design, or that they moved to a newer building, in the space of 40 years.]

During Kal-El's voyage to earth the narration states that he has all the knowledge of the "28 Known Galaxies" Given that Jor-El is supposedly from a more advanced race and that we currently know of thousands of galaxies perhaps he is a bit off. Must be the red sun. [True, we know of several thousand galaxies, but how much knowledge do we have from uninhabited or presumably uninhabited galaxies? What Jor-El was most likely saying, is that the life pod contains information from the species of 28 galaxies, and that from the other galaxies no info was to be had, as they were unpopulated or the species living there had not evolved past the very basic stages. He worded it a bit awkwardly, but that's understandable.]

Superman takes Lois' car out of the ground by the bumper. With his strength it should have come away in his hands. [Superman can control his strength. With the line of thinking you propose, then every door he opens, the handle would come off.]

If Superman has super-hearing, how come he didn't hear the helicopter crash on top of the Daily Planet? (You can tell he didn't hear by the double take he does when he looks up.) [This should be fairly obvious. Superman can control his super-hearing. Imagine what his life would be like if this ability were "on" all of the time.]

Baby superman's Christmas ornament spacecraft can travel right through a sun but the pointy things all around it shrivel and burn when it hits earth's atmosphere? [The spacecraft is an alien spacecraft. Jor-El could've detailed it to be impervious to the heat of the Krypton sun.]

When young Clark Kent is being taken on a journey by his deceased father, the journey ends with Jor-El saying, "By the time we return to the confines of your galaxy, twelve of your years will have passed." If Clark was gone twelve years, how could he have managed to get a job at the Daily Planet? There would have been a background check to see which journalism school that Clark went to as well as college and also to see if he had other jobs, yet he simply gets the job without a problem. All of the people that Clark grew up with would probably be curious as to why they haven't seen or heard from him in a long time as well. [His father says "by the time you finished hearing this 12 years of OUR PLANETS time has passed" their years are only minutes in our time, which explains why clark's father says he is thousands of years old.]

In the scene where Officer Mooney dashes into his precinct to report that Superman has hand delivered him a burglar - the officer tries to say 'In big red boots' - but actually says 'Big red ROOTS.' Incidentally where's the burglar? He wasn't there, or tied up outside with the villainous boat crew. [First off, it sounds to me like he says BOOTS. Either way, a foreignaccented character being unable to pronounce a word correctly is hardly a mistake within the film, more personal error. Secondly, there has been a MASSIVE time gap since Superman caught the burglar. He could easily have been booked in and be in a cell somewhere.]

When Lois is interviewing Superman for the first time, she already knows that he has X-ray vision and is impervious to pain. How can she know this since she is supposedly the 1st person to interview him? She should only know that he can fly and has amazing strength. [At least half of this deserves a correction: I don't know about the other half. On Superman's first night, someone hits him with a crowbar. A police interrogation of that criminal would have made the papers and led to the conclusion that Superman might be impervious to pain. Lois would have read every word written about him before the interview (there may also have been a radio report, since this was the very next day). We didn't see anything on screen Superman's first night where he used X-ray vision, but it's not unreasonable to suggest that he showed a lot of powers that night and Lois was verifying rumors during the interview.]

This is only a mistake if you watch the extended version: Superman walks through Lex's 'gauntlet of doom' where machine guns, flame throwers and sub zero blasts are used to try and deter him. The mistake is that Lex Luthor is controlling all this and he and Otis seem to expect it to work, and are surprised when Superman isn't harmed. Yet earlier Lex and Otis both established that "fire and bullets can't hurt this guy". Richard Donner and Tom Mankiewicz argue about this scene on the commentary. [The Gauntlet was never intended to stop Superman. Luthor was putting on a show so Superman would think Luthor was trying to stop him from getting to the lair. Superman then assumed he had gotten past all of Lex's defenses. Once Superman wasn't expecting anything, Luthor tricked him into opening the lead box with the Kryptonite.]

In the "Can you read my mind" scene where Superman is flying with Lois Lane through the clouds, we see a pigeon flying close beside them. Do pigeons fly above the clouds? [According to Encyclopedia Britannica, most pigeon species have been spotted above 2,000 feet. These could have been low-lying clouds.]

Towards the end of the movie, where Clark is racing (or flying) after the rocket to save Lex's girl's mom first, it seems obvious how he is struggling to catch up to the rocket. But then later, he is circling the earth to 'rewind' time, to save Lois... he must have easily been going ten times faster than he was when trying to catch the rocket. [Even Superman has to deal with air resistance in the earth's atmosphere. When he is turning back time, he is in space and therefore can fly much faster.]

The first time he catches Lois, he doesn't break her fall at all - he just stops her in midair, meaning that there'd be no difference from if she'd hit the pavement. [I believe this is the scene where Lois falls from the helicopter on the roof of the Daily Planet building. He doesn't just stop her in midair, rather he slows her descent since he's actually moving downward for a bit as he catches her. Then reverses and flies to the roof of the building with her. You could tell this by the way the background moves when he catches her.]

The burglar is heading upwards when he meets Superman on the side of the building. He's already got stolen jewellery on him when Superman hands him over to the nearest cop on the ground. Wouldn't he have been heading down the building if he'd already committed the burglary? [The burglar was probably stealing from other places before he started to climb up this building and rob it.]

We see in Superman II, Superman IV and at the end of Superman I that Superman can leaves Earth's atmosphere, ie. he doesn't need air to breathe. So why does he act as if he is drowning in Lex Luthor's swimming pool? [He was exposed to kryptonite.]