UFO by Golden Gate Bridge

UFO flies through the Golden Gate, a helicopter or?

I discover what appears to be an anomalous silver disc UFO craft flying through Golden Gate Bridge on the documentary film, The Bridge (2006), directed by Eric Steel. I sent a tweet to the director saying he should check it out. What do you think? Is it really an optical illusion or it is a real UFO?!

The film director responded to me and says he think it could be a helicopter. What do you think?

Some FAA flight rules to consider:

According to 91.119
Except for takeoff or landing, no person may operate an aircraft below the following altitudes;
a. Anywhere. An altitude allowing, if power unit fails, an emergency landing without undue hazard to persons or property on the ground.
c. Over other than congested areas. An altitude of 500′ feet above the surface, except over open water or sparsely populated areas. In those areas the aircraft may not be operated closer than 500′ to any person, vessel, vehicle, or structure.

The documentary delves into the morbid subject of suicide and portrays some people jumping to their deaths. I understand Netflix removed the film due to the country of New Zealand having a high rate of youth suicide and this would only encourage more. A hard hitting look why some end their lives.

The object seems to do the impossible and impacts the bridge though could be some kind of optical illusion. Check it out. I have captured some of these anomalous craft doing the impossible. See in previous posts.