The ship is shown one time accelerating from warp 1 to warp 7. The event of reaching warp 7 is accompanied by a spectral-colored tube. After reaching warp 1 no maneuver (as long as the speed stays above warp 1) changes the visual appearence of the flight (i.e. the white streaks passing the star ship). [Since this is the first time we've seen the effect, with nothing previously established, how can it be a mistake?] Corrected by JC Fernandez

At the beginning of the film, the Space Station is tracking the fight between the Klingon ships and V'ger. At one point, the crew on the Space Station have footage of the Klingons on the bridge of one of the ships. This should not be possible as the Klingons did not contact the Space Station. [They could have hacked into the ship's view screen like they did in the series.] Corrected by Rlvlk

Starship Enterprise is pressed into service against the alien cloud, the reason given being that it's the only starship within intercept range. It seems that only a grossly inept defensive organization would leave Earth with only a single, unfinished ship for its defense. There ought to have been an entire fleet of well-armed spacecraft available to rendezvous with V'ger. [Yes, Starfleet has other ships, but they're out on patrol, exploring or undergoing repairs themselves in spacedock. Even though there are no ships available there is a massive space station & several unmanned defensive drones to provide Earth's defense.]

in the scene where the crew is viewing Vger attacking a space station, the station switched from station crew view to outer view showing Vger. after the station was destroyed, Vger was still seen. If the station was destroyed, how was it still transmitting video? [As seen in many episodes, the distress calls, etc., are often recorded and the signal remains to be received by the Enterprse and other ships arriving too late.]

When the travel pod arrives at the Enterprise with Scotty and Kirk, The computer says "Travel pod available Cargo 6", but the sign above the door says "5". [Some systems of the newly-refitted Enterprise were still malfunctioning (such as the Warp Drive and transporters). It's possible whatever subroutine was responsible for announcing shuttlepod availability was malfunctioning as well. Also, this computer voice was removed from the DVD Director's Edition of the movie.]

When Spock arrives in his little long-range shuttle, he is greeted at the airlock by Mister Chekov who is noticeably pleased to see his old comrade. Spock then leaves before and without Chekov. He heads to the bridge and arrives there alone while everyone is pleasantly surprised to see him. Kirk then turns and gives an order to Chekov. Chekov? When did he get there? There is no sound of a turbolift opening after Spock's and he didn't arrive with him. Even if Spock did dilly dally around before going to the bridge, allowing Chekov to get there first (which is extremely unlikely as he had no luggage to drop off at his quarters), did Chekov decide not to tell everyone Spock was here? Or did he tell them and they are just faking their surprise? [Spock and Kirk were old friends and had lost contact throughout the years. The same is true for the rest of the bridge crew. Not only that, Spock had left Starfleet to pursue the way of Kolinar on Vulcan. Have you ever invited an old friend to your home and received confirmation that he/she was coming? You'd still react with surprise when he/she actually shows up. So, the reaction of the crew toward Spock arrival makes perfect sense, in light of their fondness and endearment toward him.]

Kirks log states that they must risk engaging warp speed while still in the solar system. When did this become an issue? For example (only one of many from the series), in "The Naked Time," Scotty tells Kirk that they will be "warping out of orbit" a mere second after Kirk gives the word. And even if that was a new rule, why couldn't they just move up past the plane of our solar system and then warp out. Star Trek seems to have this idea that a fly-by of all the outer planets is necessary when entering or leaving our system. In fact, one could simply enter or leave at an angle perpendicular to the general plane of the planetary orbits. [The Enterprise's warp engines hadn't been tested yet, in TOS malfunctioning warp engines caused all kinds of strange space time effects, and did in this film. What would have happened if the wormhole had appeared next to Earth?]

When the crew first figures out that V'ger was an old Voyager probe, Decker says that Voyager disappeared into what "they used to call a black hole". Why didn't he use the 23rd century term? That's like saying you went driving around in what "they used to call a horseless carriage". [Yes, and just after that he says, "NASA". After that, he repeats what NASA stands for. NASA is a 20th and 21st century term. NASA did not exist in the 23rd century. Should he have not said "NASA" and just said "Starfleet" instead? He was just using an older term to relate V-GER's point of view to that of the 23rd century. (By the way, I've heard this in real life. So and so died from "what they used to call consumption". Why not just say "tuberculosis"? It's all a matter of putting something into historical context.).]

In the beginning three Klingon ships are moving in to investigate "the cloud". I know that they are not the most friendly of species but is it common practice to initiate first contact with weapons fire? Also, we know it is "honorable" for a Klingon to die in battle. However, the last ship left was facing and moving away from the cloud. Why didn't they go to warp? If, for some reason, their warp capabilities weren't functioning it would have been nice to see that they at least tried. [The Klingons consider anyone entering their territory as an enemy.]