Visible crew/equipment: When Zaphod says his first line "I certainly didn't survive.", you can see the person who plays his third arm standing behind him.
Visible crew/equipment: While Ralph and Pam are watching the mustangs Ralph starts taking pictures, then when Pam points to the black stallion, in the first shot of that beautiful stallion the animal trainer can be seen hiding behind the bush. (00:02:40)