The jets are fake, and no, there isn't two pairs of jets. They don't fly that close. They either fly in a big formation, or they give room to
maneuver to either squad.
The turn-around speed is too fast to be real for the speed the jets have. They are not in supersonic speed, they don't have their afterburners on.
That is a representation of jets flying at a low altitude cruising speed, which puts to the ground their maneuvers.
When attacking, you need time to lock to your target, and that is true for any F-14 (that isn't in service anymore), F/A-18 or A-10. It's not like
they are playing Ace of Combat and they can go around like they want to...
They have to attack, gain altitude and make another angle of attack. They don't just go around and attack like they want to, and fighters don't come
across that close to eachother in any scenario but a airshow one.
The helicopter isn't CGI. Is real, from the noise to the object and to the effects on the water (way to complex to fake).
The helicopter is a A-Star, provably the 350.
Is a almost perfect helicopter for urban acttivities. That's why the police and news agencies use them so much.
Guess who DOESN'T use them... Yes, the military. Neither does the Coastal Guard for that matter.
I'm portuguese, and we have a huge ocean territory. That is a short range fishing boat, so it has to be close to land, and there isn't any american
base that could respond in that way within my knowledge.
In this situation it could only be a spanish helicopter or a portuguese military helicopter (that make coastal duty), or a airplane (hercules C-130
for example).
And we use radios around here, and you have to use them, so its stupid to think that they would send a helicopter to say "hey, leave the area". They
would just contact them via radio, or use a interceptor boat (which Portugal and Spain have) to approach this boat.
Neither Portugal nor Spain use the A-star for military/coastal duty.
The only american base around here that is important enought to take a mission like this is in one of our islands. The Azores base. But since the jets
are fake, that doesn't even need to be looked into.
Conclusion: It's fake, and someone spent a lot of resources to pull this one off. but some aspects fail, like the maneuvers of the jets and the water
effect of the UFO.
P.S.: I'm not a accent expert, but this spanish accent sounds more mexican than spanish to me, don't know why. And the accent from Galiza sounds a
lot like portuguese accent, so I would recognize it. But I'm not sure on this one.