Continuity mistake: When Groot creates a handle for the axe with his arm, he chops off the arm and it lands on the ground. The sharp end is facing to the right when it lands, but when it begins to lift, the sharp end is now facing to the left. (01:44:20)
Suggested correction: Looking at the screen, sharp end is to the right, Groot adds the handle as he does he rotates it, and then when he creates the handle, Stormbreaker falls as expected.
You're talking about the wrong part of the scene. The mistake occurs after Groot adds the handle and cuts off his arm. After the completed Stormbreaker falls, its position changes when the camera cuts to it starting to rise.
Continuity mistake: Thanos' ship is near the ground in New York but seconds later when Peter senses it, the ship is higher, at building level. (00:18:10)
Suggested correction: The two events aren't happening in real time. It's clear Peter sees the ship before it gets close to the ground.
