Corrected entry: It is established at the start of the movie that the Klingon Bird of Prey is the same one that they flew to Vulcan in Star Trek III: Search for Spock. The bridge of the ship however is totally and utterly different to the one shown in the previous movie. There can be no claim to suggest they remodelled it in their time on Vulcan, because everyone still uses the controls with a degree of caution, which they wouldn't do if they modified it to suit their needs.
Corrected entry: The humpback whales are about to be returned to Alaska for release back into the wild. Dr. Gillian Taylor tells Kirk and Spock that Gracie is "very pregnant." In that event, the whales should be released in Hawaii instead of Alaska. Humpbacks give birth in warm, south Pacific waters during the winter and later migrate north for summer. (01:04:30 - 01:21:20)
Corrected entry: Immediately after the whales' transponders are located in the Bering Sea, Gillian can be seen mouthing, "How can you do that?" without sound, then she is immediately seen and heard giving the same line from another camera angle.
Corrected entry: In the chase scene where Checkov is being rescued from the hospital, there is a shot where the crew bursts through some doors and knock over a man on crutches wearing a cast. As he falls, Bones grabs him and the camera pans off. Once the camera pans, you can hear Bones say to him, "Great shot!" This was on the video version of the movie. I haven't seen the DVD.
Corrected entry: In a scene with Norwegian whalehunters, the sailors speak Finnish not Norwegian. They are also using somewhat obscene words, maybe all sailors do.
Corrected entry: When Spock announces "Gracie is pregnant," Gillian slams on the brakes and stops her truck. Look at the convex mirror on the passenger side next to Kirk. Despite the fact that there are joggers and other things moving in the background, there is no movement in the mirror; at that angle the viewer should have seen lots of movement in the convex mirror. (00:58:50)
Corrected entry: In the operating room, just after Kirk welds the lock shut, Bones is leaning over Checkov, he reaches out his hand and we assume Dr. Gillian hands him the piece of equipment that he puts on Chekov's forehead to heal him. How did she know what equipment to give him as it was from hundreds of years into the future and Bones doesn't actually ask for it?
Corrected entry: In a scene early in the movie where Spock is being tested by 3 computers the computer output is being displayed on clear screens that look like teleprompters. One of the camera angles is looking up at Spock from behind the screen. To the viewer the words in the question are backwards (forwards to Spock), but when the word "Correct" is displayed it is forward to the viewer (backwards to Spock).
Corrected entry: When Kirk, McCoy and Dr Taylor escape from the hospital with Chekov, they are "beamed out" of the elevator and "beam" back in at the park next to the Bounty. My understanding is that the transporters can "beam" people from the transporter itself to another place, or from another place back to the transporter, but not from another place to yet another place. I realise that this is required in the movie, because when they arrive back at the Bounty, Kirk tries to tell Dr Taylor she can't come with them, which would have been awkward if they were on board at the time, but it is still a small mistake.
Corrected entry: In the scene where Gillian picks up Kirk and Spock as they are walking back from the Cetacean Institute, Gillian asks, "Where are you going?" to which Kirk replies, "Back to San Francisco." They are already back in San Francisco, walking along the Marina Green. In fact, if we assume they are walking back to their ship in Golden Gate Park, they're going the completely wrong way.
Corrected entry: Between ST3 and ST4, the bridge set of the Bird of Prey changes from a two-level room with the captain on a raised platform and the crew in front of him, to a one-level room with two stations behind the captain and a console in the front.
Corrected entry: In the scene where they are landing the cloaked Klingon ship in Golden Gate Park, it crushes a garbage can and depresses the ground several inches. However, after the ship lands you can still see grass blowing in the wind under where the ship is supposedly sitting.
Corrected entry: Didn't the crew notice on their sensors that there was a garbage truck with two garbage men in the park, right next to where they landed?
Corrected entry: In the scene where the ship lands in the park, a garbage can is blown around, and then crushed by the ship. But a ship landing would cause things to be blown away from where it was landing, and the garbage can is blown from outside where the ship lands to directly under it, almost as if the landing ship was sucking the can under it, which would not happen.
Corrected entry: The reactor compartment can be seen though a window and billowing steam or smoke is visible. While a neat effect, the steam produced in a reactor is contained in piping. Smoke or steam visible is a very "bad" thing - like 3 mile island or Chernobyl.
Corrected entry: Chekov and Uhura beam aboard the USS Enterprise (air craft carrier) to collect radiation to recrystallise the dilithium so they can leave. When I served aboard a nuclear powered ship, we normally shut down the reactor after we came into port. There is negligible amount of radiation produced from a shut down nuclear reactor.
Corrected entry: In the scene near the end of the movie where the crew is celebrating in the San Francisco Bay after the probe has left, Spock appears to be smiling and laughing as everyone frolicks in the water. Doesn't this go against his Vulcan suppression of emotions, which historically only came out when something was wrong with him?
Corrected entry: When Kirk and Spock go to get money, Kirk sells the glasses that Bones gives him for his birthday. Spock questions him about this, and Kirk says that Bones will give them to him again. That would I suppose would be theoretically possible except they return to their time moments after they leave, not before they leave.
Corrected entry: In the last quarter of the movie Kirk is beaming on board the "bird of prey" and Doc Gillian is clasping him so she beams on board too. She wants to travel into the future and tricks Kirk out. So long so good, but why is Kirk beaming on board in the first place? One minute earlier the sick Checkov and 3 other crew members walked in using the ship's ramp. Did they close the ramp knowing that Kirk is still standing outside? And the trick with clasping Kirk is OK, but they could just as easily beam her out again or kick her out using the ramp.
Corrected entry: When the crew starts to evacuate the Bird of Prey from the ship's hatch, the sound stage wall is easily visible.