When Picard and Troi open the door to the holodeck the horse can be seen with a saddle already on.
When they enter the holodeck, the horse is without saddle, waiting for Picard to put it on.
When Riker talks to Wesley in Ten Forward, Rikers glass sits in front of him. The handle keeps facing away from the camera when the camera angle changes from Riker's POV to Wesley's POV.
Picard orders Data to sever contact with Sarjenka. Data responds to Picard's order by piping the transmission from Sarjenka into the captain's quarters, violating a direct order.
When Picard orders Data to sever the contact, Data first has to access the frequency (the computer responds that it is isolating the frequency). When Sarjenka's voice is heard, Data is obviously about to terminate the transmission; otherwise, Picard would not, with his next command, have to stop him from doing so.
When Picard orders Data to sever the contact, Data first has to access the frequency (the computer responds that it is isolating the frequency). When Sarjenka's voice is heard, Data is obviously about to terminate the transmission; otherwise, Picard would not, with his next command, have to stop him from doing so.
When Sarjenka is in sick bay, a close up of her face reveals a poorly applied plastic mask that the actress wears to give her an alien appearance, especially noticeable around the eyes.
After Data brings Sarjenka with him to the bridge, and Capt. Picard asks Counselor Troi to escort Sarjenka to Sickbay, she resists and raises her hands in front of her face in fear, and when she does so, you can easily see the fake fingertip extensions on her hands.
As Picard and Counselor Troi entered the holodeck, the horse In the background already had a saddle on. But In the very next scene, as the two approached the horse, the saddle was on the hitching post, not the horse.
When Data hands Serjenka the singing stone you can clearly see the line separating her pinky from the prosthetic elongated finger.
When Riker talks to Wesley in Ten Forward, Riker picks up his glass by the handle and takes a drink. When the camera angle changes not two seconds later, the glass has turned around and he is holding it on the opposite side of the glass and not the handle.
When Doctor Polanski speaks with Wesley just before he meets his team, the tip of a boom mic can be seen wavering in and out of the top of the shot for a second or two.
The Federation's Prime Directive is a hard rule of noninterference with less-developed cultures. Picard is vehement about it in Justice (1987), but he does a 180-degree turn when he hears Sarjenka calling for help. This contradicts Picard's behavior in Encounter at Farpoint (1987), when the Bandi city was being destroyed and the people were screaming for aid, and he calmly sat and discussed his options. Likewise in Symbiosis (1988) when one of the Onarans begs for help, Picard refuses, citing the Prime Directive.
Picard's decision to help Drema IV rests solely on his own emotionalism, which is exactly the type of action that the Prime Directive was designed to prevent.
Pulaski wipes Sarjenka's memories so that she has no knowledge of the Federation. That will leave everyone protected from violating the Prime Directive. However, Data leaves Pulaski's singing stone with Sarjenka shortly before he leaves, providing her with tangible evidence of the Federation's existence.
The entire crew act as if they have never seen an alien before, after Data brings his friend on board, and refer to her as "that".
Worf's attitude when talking to Data about his personal project on the bridge is inappropriate. Data outranks Worf.
Data flips his tricorder open like a modern day flip phone when beamed down to the planet's surface. This has never been the occurrence in any other episode. It needs manual opening with a finger.