When Teek and Noah are eating the bread at the table, they switch back and forth between Noah's face and Teek's, but if you look at the tray of bread you will notice, that there is bread when the camera is facing Noah, but no bread when it is facing Teek.
It is wrongly assumed when Noah and Cindel arrive at the castle, Noah dips his staff into the moat to show that it is made of some type of acid and the walking staff head is melted away. However, when they are running from the castle, Noah's staff is once again complete and the head is perfectly in place.
Firstly, it's not his staff Noa shoves in the water; it's a branch with leaves clearly visible on it. Secondly, it's not acid that melts it; there is a creature in the moat that attacks it. The same creature tries to get Wicket minutes later when he is dangling with his feet in the moat.
When the Ewoks are swinging from the ropes during the final battle, when one swings out from behind a tree a hand is visible pushing them to swing back out.
Aubree Miller (Cindel) looks directly into the camera, then quickly away, when she, Noa, and the liberated Ewoks arrive at Noa's star cruiser.
When Cindel and Wicket leave Noa's hut, (26:36) some blue/silver, (colors of the Port-a-Brace company) thing is seen behind a large tree in foreground left bottom of screen. As the approach tree it disappears behind the tree.
Noa's partner, Salak was effectively left to rot in the Marauder's dungeon by him. Not once in all those years he considered to free him or at least investigate his whereabouts.