Continuity mistake: In the latter half of the movie, Picard looks at a picture of himself from his days as a Starfleet Academy cadet while Beverly looks on too. This picture is actually the actor Tom Hardy (Shinzon, Picard's clone) and he appears with a completely bald/shaved head. Showing Picard bald as a cadet completely contradicts the TNG series. In the TNG episode 'Tapestry', a flashback set in 2327 (the year Picard graduated from the Academy), Picard is shown with a full head of hair. Also, in the TNG episode 'Violations', a flashback set in 2354 shows Picard with a partial head of hair when he takes Beverly to see her dead husband Jack's body. Or... Picard simply shaved his head at one time when he was a cadet and it grew back.
Visible crew/equipment: When Picard, Data and Worf are on the planet, just a few shots after they leave the shuttle, Picard drives a sharp left curve. If you look at him in this shot, it is not Patrick Stewart sitting on the driver's seat, but his stuntman, who is not even wearing goggles.
Continuity mistake: In the scene where Picard and Data are about to board the Scorpion attack flyer, Picard throws his disruptor rifle to the ground. Yet just seconds later when the Scorpion is about to escape by blasting the entrance to the hangar bay open, no disruptor rifle is seen on the ground.
Trivia: At the end of the movie, B-4 starts singing, causing Picard to smile because he knows Data's memories are surfacing. This is almost identical to a scene in Voyager when the Doctor was copied onto the matrix of Dr. Zimmerman to restore his program. It ended with Kes having the identical reaction that Picard had to B-4.
Question: Wouldn't Shinzon have had to know where the enterprise is being assigned in order lure them to pick up B-4? Data's brain has a safeguard so his positronic energy signature cannot be tracked. And how did he know a different ship instead of the enterprise wouldn't come to Remus to pick up B-4?