Corrected entry: While at Maz's castle, Finn's blaster suddenly goes missing. He had it when Maz gives him the lightsaber, but once he comes out of the castle it is gone. He even tells Maz that he needs a weapon. She reminds him about the saber. He has the blaster when he gets to the Resistance base.
Corrected entry: When the falcon leaves Jakku the bottom cannon is back in position and not stuck in the forward position.
Corrected entry: During the chase on Jakku the Falcon skims the sand a few times. With the weight and speed of the Falcon the bottom cannon should be ripped off but it isn't. Also later when it crashes on Starkiller Base there appears to be no apparent damage - impossible after such a hard landing, compacted snow is like concrete.
Corrected entry: The crashed star destroyer on Jakku defies the laws of inertia - the command tower would have collapsed onto the main body when hitting the planet. By the look of the bent up front during the chase it hit pretty hard.
Corrected entry: When Finn is talking to Maz about his past, he leans in, saying "You don't know a thing about me." When he does this a flag is extremely visible in his eyes. Lucasfilm animators actually tried to fix this by putting the same flag reflection in Maz's eye to make it look like only like a light above them. However it is quite obvious it is a flag.
Corrected entry: Finn enters the shuttle upon return from Jakku, looks over his right shoulder and removes his helmet. We then hear Captain Phasma speak and she is standing right where he just looked - how did she get there? There's a bulkhead behind her, and the entrance ramp in front of her. If she was already there Finn would have seen her.
Corrected entry: When Finn is on the ground after being chased by Rey and then shocked by BB-8, Finn's pants do not have burns from the initial shock. The shot changes to Rey and back to Finn seconds later where he is shocked again and has 2 burn marks on his pants. When the shot comes back to him on the ground for a third time, there are no burn spots.
Corrected entry: When the stormtroopers run out of the dropship onto Jakku there is a downed stormtrooper at the bottom of the ramp. If you look closely it's just an empty stormtrooper suit.