Data is affected by the virus, and notes that his android physiology and mechanisms leave him susceptible to such illness. In future occasions, notably Angel One (1988), Data is seen as being immune to plagues and viruses affecting living crew members.
At the moment Tasha Yar infects Deanna Troi by holding her hand, the scene shows 2 camera angles (1 from over each characters shoulder). From Tasha's perspective, we see the blue garment she was inspecting last is held between both characters right hands, but from Troi's perspective, the garment is clearly shown being held only by Tasha in her left hand.
When Yar is in Troi's quarters trying on clothes, in shots focusing on Troi, the two women are holding their right hands together. In shots focusing on Yar, it is Yar's right hand holding Troi's left.
When Dr. Crusher is administering the antidote to Geordi, in the wide shot she is pressing the hypospray lower on his arm, somewhere on the upper forearm or lower bicep. In the closeup, she is pressing it high on his shoulder.
The Enterprise buys itself time to get out of the way of the star piece by pushing off the Tsiolkovsky. Given the massive size difference between the Oberth-class Tsiolkovsky and the Galaxy-class Enterprise, that would be of negligible help. The Tsiolkovsky would have been launched away while the Enterprise would have barely moved.
The dedication plaque on board the SS Tsiolkovsky, written in Cyrillic, actually reads as "K. Z. TSIOPKOVSKY". Two of the letters are incorrect: P instead of L inside the last name itself, and the second initial Z instead of E (Tsiolkovsky's patronymic was Eduardovich). In Cyrillic, L and P, as well as Z and E, look relatively similar, which is probably why they were misplaced in the inscription.
When Data arrives in engineering to reinstall the computer chips Riker tells him they have 8 or 9 minutes then asks if he can finish in that time to which Data replies that he needs slightly more than that. There are approximately170 chips and Data appears to be putting them back at a rate of 2-3 per second. Even at 2 per second it would only take him 1 minute and 20 seconds to reinstall all 170. Thus he could complete the job in plenty of time.
When Picard and Crusher are talking in his ready room, the camera zooms into their faces very close. They are standing just a few inches apart and Picard can be heard giggling. Not only is giggling inappropriate (Picard has not been infected) but his lips seem to move as if he were saying something.
The crew/staff plus spouses and children could have numbered anywhere from 800-1,200 people aboard the ship, yet we are to believe that only ONE doctor was running the medical department by herself as shown. Even the original show had a several nurses and staff in the medical department. It is not believable that Dr. Crusher had no staff. It is established later in the series that there ARE other doctors on board.
When Data informs the Captain of a similar event having taken place on Captain Kirk's Enterprise, the computer graphic shows a model of the refit-version of a Constitution class Starship. But Kirk had to deal with the Psi-2000 virus on his first five year mission (The Naked Time (1966)), way before the refit of the Enterprise, which did not occur until Star Trek: The Motion Picture (1979). The original Enterprise was refitted and served the last dozen years of its life in the configuration shown, so the diagram did show the original Enterprise, just not at the exact moment in its history that the incident took place. Nevertheless, this has since been "corrected" in the 2012 remastered edition, with the graphic of the TOS-series Enterprise featured.
After the Chief Engineer McDougall is called to the bridge, the assistant Engineer Shimoda is then called to medical. Both calls false of course as Wesley issued both to get control of Engineering. It is hard to believe an Engineer or even an assistant Engineer would leave a child in charge of Engineering.
However, when Wesley comes into Engineering, he shakes hands with Assistant Chief Shimoda. Thus, he was infected and not thinking straight when he left his post.
However, when Wesley comes into Engineering, he shakes hands with Assistant Chief Shimoda. Thus, he was infected and not thinking straight when he left his post.
The opening captain's log states they're "running at warp seven" yet the exterior establishing shot shows no stars moving by the Enterprise indicating they're traveling at sub-light velocity.
On the Tsiolkovsky, when LaForge goes to the crew quarters, the frozen body on the left (with his back leaning against the couch) is visibly breathing.
The wires supporting the chair are visible when Wesley is demonstrating his portable tractor beam.
When Riker is ordering Data to do some research, he is sitting on the computer console. It surely wouldn't do this highly sophisticated 24th century equipment too much good using it as furniture.
When assistant-engineer Shimoda runs into the force field in engineering, his forehead makes contact with the field and, when he staggers back, his hands flail out in front of him. His hands crossed the threshold that the field was blocking and should have impacted the force field as well, but they are not shown to do so.
When Riker and MacDougal are working to cut power to Wesley's tractor beam, at one point they look over to check if it has dropped. The POV shot is from inside the compartment where Wesley has isolated himself, not outside where Riker and MacDougal are located.
After Wesley suggests that Data could replace the control chips, Riker grabs Data and leads him off the bridge, telling him to "hurry." Riker pushes Data towards the starboard side of the bridge. The only turbolift on that side of the bridge, as established in the pilot, is the emergency lift that goes straight to the battle bridge. There are two general purpose turbolifts on the port side of the bridge (one beside the entrance to the ready room, the other at the rear of the bridge). Riker should have led Data in that direction.
The reflection of a camera operator can be seen in the glass front in sickbay during the final scene. This is the first such goof in TNG.
Yar uses the phrase, "Ship's stores will have it." With replicator technology there would be no need for storage. Any item needed could be replicated, from food to clothing to spare parts. No need to store clothing. You'd place dirty clothing in the replicator and turn it into new clothes. Recycling on the atomic level. However, it should be pointed out that the ship's replicators were not actually acknowledged until Conspiracy (1988).
When Tasha finds Geordi, she makes a page asking for a team to be sent to the observation lounge. Only one person shows up.
Dr. Crusher, Riker, and Picard give Wesley praise for coming up with a solution to give the ship enough time to get out of the way of the star's protomatter. They all completely ignore that it was Wesley's actions that put the ship at risk in the first place. If it would be "fair," as Riker comments, to give Wesley a mention in the official log for buying the ship time, it would also be fair to include the whole story of how they got into that mess in the first place.
The security team has to do a manual search for Geordi, as he left his combadge in sickbay. No one thinks to scan for his unique life signs, or even the unique signals given off by his VISOR.
Correcting Commander Riker's wording, Data mentions the correct term for what happened to the science ships's bridge crew from "sucked" (Riker's term) to "blown". Actually, the term "suck" is defined as a fluid or mass traveling from a high pressure region to one of low pressure so Riker's statement about them having been sucked out was factually correct.
Dr. Crusher is upset and worried when Riker touches her, after he got infected himself previously. Yet whenever treating La Forge, the first person to be infected, at no time does she wear gloves or any other type of protection for herself, which a good doctor in the given situation would normally always do.
When the assistant chief is "summoned" to medical (actually Wesley playing a trick), he states that the chief engineer just left, which would leave no one on duty in engineering. There are visibly many engineering officers in the background. All of them are on duty. While it's possible he meant there would be no command-level officers, a junior officer could easily be left in charge of the department, especially for a short time.
When Deanna goes to engineering to talk to Riker, she addresses him as "Bill", a common nickname of William. But even this early in the series, it's established that he familiarly goes by "Will" or "William".
Wesley reroutes the ship's tractor beam to make a repulser beam, in order to give Data more time to replace the chips to restart the engine. But pushing against the Tsiolkovsky is far less effective than would be pushing against the core fragment itself. And the ship doesn't need to go to warp to escape the fragment; it simply needs to move out of the way of the fragment, a few hundred meters in any direction.