Other mistake: When Capt. Picard is talking about a prisoner transfer, he says he will beam over to the Klingon Ship, then they can beam him down to the planet. He beams off the ship, and is then on the planet, but his transporter pattern (which should be Klingon red) is blue, the Starfleet pattern colour. He must have gone to the Klingon ship first, as his communicator is on his chest when he leaves the Enterprise, but gone when he lands on the planet, meaning someone, obviously the Klingons, took it off him. And don't say the Klingons gave the Enterprise the co-ordinates for Dr Soran's missile site, they're cleverer than that. (01:01:45)
Other mistake: When Worf tells Riker the Romulans were looking for Trilithium on the station, Riker acts as if he never heard of it before, and Worf explains that it is an experimental compound that the Romulans were working on. However, in the Next Generation episode, "Starship Mine", terrorists steal Trilithium resin from the warp engines to sell as a weapon, and Picard seems to know a great deal about it. (00:34:10)
Other mistake: During Worf's promotion party on the sailing ship, a harbor buoy is seen in the background 20 feet from the ship.
Other mistake: Historically, in the Star Trek universe, the doors to any room, including turbo lifts, opened automatically at a person's approach. The only time a turbo lift door didn't open was if there was no car there. This time Harriman touched a control at the right side of the turbo lift doors.