up. You can still see the uniform  jacket folded on the ground where Spock had been laying but when  they show Kirk holding Spock getting beamed up the jacket is now  draped over Kirks arm and he is carrying it aboard the Klingon ship.  Since there is no way Kirk could have bent down to pick up his  uniform jacket while holding Spock, while the planet is exploding  around them Kirk would have had to put Spock down, pick up his  jacket, pick Spock back up and then call for beam