Continuity mistake: At Isengard, when Pippin recovers the palantir, in two shots it's large enough to fill both of his hands, so that he has to spread all of his fingers to hold it. In the next shot of Pippin and Gandalf, Pippin raises one hand holding the palantir and Gandalf quickly takes it. In this particular shot, as Pippin hands the palantir to Gandalf with one hand, the circumference of the palantir is noticeably much smaller (while still in Pippin's grasp), than it was in the previous shots.
To submit a picture, just click the edit icon under the relevant entry, then choose 'add a picture'. Thanks!
All images remain the copyright of their original owners - these low resolution images are simply individual frames used to demonstrate the entry.