Visible crew/equipment: Striker is in the pilot's seat and a vulture is sitting on the back of it. On the bottom-left of screen you can see someone's forearm in a white sleeve, giving the suggestion that either Randy or Elaine are standing, and leaning on the pilot seat's armrest. However, Randy is not in the cockpit and Elaine is sitting in the co-pilot's seat. (00:57:05)
Visible crew/equipment: In the beginning where the camera is following some of the characters to appear later in the film, when we see the Harii Krishna guys a cameraman and a camera on a dolly track are reflected in a shadow on them for a few seconds. (00:02:30)
Visible crew/equipment: At the point where Striker is walking through the tunnel to board the plane near the beginning, for a split second, one can see a section of cable lying on the floor and a crewmember off to the side. (00:04:35)
Visible crew/equipment: In the Disco Dance scene when Elaine is twirling Ted, you see a wire holding him up. (00:19:45)
Visible crew/equipment: Near the beginning, when Striker is running down the hall to talk to Elaine for the second time, you can see a crew member pulling wires. (00:07:05)
Visible crew/equipment: When the vulture appears behind Striker, notice a moving white stick on the left side of the screen used by the animal handler offscreen.
Visible crew/equipment: In the final scene where Elaine and Ted kiss, the shadow of a boom mic can be seen on Ted's shirt as the camera pans around. (01:21:55)
Answer: This is a reference to The Godfather, where a character being intimidated by the Mafia wakes up with his prize racehorse's severed head next to him on the bed. For comedy purposes this is twisted by the movie as an implied sexual relationship, when the horse is revealed to be alive.