Corrected entry: Rocket is canonically four feet tall and weighs fifty-five pounds, about the size of a six-year-old. At the end of the movie, when carrying a knocked-out Rocket, Quill's arms are not tense as if he was holding that much weight.
Corrected entry: When Peter lunges for the Infinity Stone, he reaches out for and catches the stone with his right hand, yet for the rest of the scene, the stone is in his left hand.
Correction: When he is on the ground with the stone, he holds it with both hands, then transfers it to his left hand when he stands up.
Corrected entry: Drax is supposed to be a completely literal character. It is explicitly mentioned and played for laughs several times, he also tried to make a metaphor supposedly for the first time and it is called out. However, he speaks metaphorically twice: once when he refers to his enemies as "paper people" and when he refers to Gamora as a whore. The people he is fighting are not actually made of paper, and I doubt he believes Gamora is accepting money for sexual favors.
Correction: Using the word "like" or "as" would make something a simile, not a metaphor. For it to be a metaphor, Drax would have said something like "Their skin was paper." You know their skin isn't actually paper. And as for the Gamora/whore comment, I honestly don't know. Maybe Drax literally sees her as a whore and it wasn't a metaphor for anything at all? xD.
The reason why Drax refers to Gamora as a whore, is that the prisoners were calling her a "green whore" when she first entered the prison yard earlier in the film. Drax, being the kind of person that he is, does not realise that they were using it as an insult, but mistakenly believes that is what she actually is.
Corrected entry: Towards the end, while Star Lord is talking to Corpsman Dey before he gets his ship with the others, the sun changes between shots.
Correction: Xandar has three suns.
Corrected entry: At the end Quill is standing in front of Ronan doing the dance off, but when he dives for the orb he's coming from Ronan's left with his right hand out. If he was in front of him he should have his left hand out and be diving to his left, not across Ronan.
Corrected entry: When Gamora is left floating in space and Peter Quill flies over to save her, his pod doesn't have any claws. When he exits his pod it has claws again. (01:06:15 - 01:06:50)
Correction: There is only one shot where there may be claws, however it is not possible to determine if it is claws or merely the debris in the area. All other shots show the pod with no claws.
Corrected entry: The "Infinity Stone" inside the orb is revealed as Tivan the "Collector" recounts its origin, before this moment no one knew the stone is inside the orb and no one can know afterwards, since Gamora sealed the orb. However during the pod pursuit Nebula says "The stone is in the furthest pod", the stone's existence is impossibly revealed. (01:02:00)
Corrected entry: During the opening credits when Peter Quill does a dance sequence in the temple on Morag, he grabs one of the lizards and uses it as a microphone. But when he comes across the skeleton and spins it with his right hand, the lizard is gone. The next shot shows him singing to the lizard again.
Correction: The scene in question is shown as an out-of-sequence montage/musical number. The shots aren't necessarily presented in chronological order. (Hence, why he goes from walking to sliding on a liquid slick between shots, why the lizard disappears and reappears between the sequence, why he goes from dancing to observing a skeletal mass between shots, etc.) Not a mistake.
Corrected entry: When Peter catches the prison guard listening to his Sony Walkman, Peter tells him to take the headphones off and the guards taze him. Peter, referring to the song the guard is playing, then says "Hooked on a Feeling, Blue Swede, 1973. That song belongs to me." The Blue Swede version of "Hooked on a Feeling" was released in 1974, not 1973. (00:24:20)
Correction: He got the tape from his mother as a child decades ago. It's a minor and easily understandable mistake that anyone could make.
Correction: 55 pounds isn't all that heavy. Plus Quill is a 34 year old adult man who (while not the strongest of the bunch) can still lift what would be equivalent to a human six-year-old.