When the survivors are burying the first victim, one of them comments that they "didn't even know" the person's first name. During the accusation scene, all ten characters are present and all ten characters' full names are used, but perhaps that person forgot due to the stress (or the copious amount of alcohol they drank), or they weren't paying attention during the recording.
As the guests are sitting in silence around the main piano tent Mrs. Rogers (Moira Lister) suddenly states "See. That's just the beginning. They keep it up all night." She is referring to the annoying roaring of lions in the evenings but the sound effect of a lion roaring is missing from the scene.
After Mr. Rodgers (Paul L. Smith) publicly snaps the record of U. N. Owen's message in half one of the guests asks if they should listen to the recording again.