Visible crew/equipment: When the man is in front of Brody talking to him on the beach the film crew are reflected in Brody's glasses.
Visible crew/equipment: When the first barrel goes on and Quint is at the front saying "5° port now." When we see a close up of the barrel at the bottom right of the picture you can see the wake from the camera boat. The wake is going toward the shark and not away from it.
Visible crew/equipment: As Hooper says the shark is "back for his noon feeding", you can see the camera and lighting reflected on Brody's glasses.
Answer: Although the 1995 documentary "The Making of Jaws" claims that the shooting star was real, the fact is that the shooting-star background effect is a Steven Spielberg trademark in most of his films (first noticed in "Jaws," but also appearing in "Close Encounters," "E.T. The Extraterrestrial," "Indiana Jones and the Temple of Doom," "Saving Private Ryan" and others). Spielberg has always had a fascination with shooting stars, dating back to his childhood, and he works them into almost every film. Http://americanprofile.com/articles/steven-spielberg-shooting-stars-movies/.
Charles Austin Miller