Continuity mistake: When the kids wash up on the island, Lisa, Wendell, Martin, Lewis and Sherri are on land and Bart, Milhouse, Ralph, Nelson and Terri are still in the water. In the next shot, Bart, Milhouse, Ralph, Nelson and Terri are on land with the others. (00:07:15)
Continuity mistake: When everyone discovers Milhouse has eaten the food, Milhouse then says "You wouldn't dare hurt me. You forget, I have the glasses." After this line, Nelson takes off Milhouse's glasses. At this point, a rip is visible on the left side of Nelson's shirt. Milhouse then walks backwards and Nelson is seen re-entering the shot from behind Milhouse. Only now, the rip in Nelson's shirt is now suddenly on the right side of his shirt.