After initially watching the video I can immediately determine that the lights are not from a helicopter, the movement is too fluid and not consistent with a classic helo. Epauker’s additional comment about jets seems more likely, but the flight patterns of the objects are too risky, and are not characteristic of commercial jets.
If you take a look at 0:54-1:01 of the video, you can clearly see the lights rotate before a single orb breaks free of the group, accelerating and ascending into the sky. A maneuver like this can prove tricky to even the most experienced pilot.
Still unwilling to dismiss the jet theory, I began researching types of jets and the spectrum of capabilities by each. The fastest jet to date is the Lockheed SR-71– many of you who play video games will recognize this type of craft from Call of Duty: Black Ops.
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The SR-71 was unofficially given the name blackbird, and is the fastest air-breathing jet in the world. The Lockheed can reach speeds of up to 33 miles a minute- or 3,000 feet per second- and can travel at an excess of 85,000 feet, a height so insane that the curvature of the earth can be seen from the aircraft. But, with the SR-71’s main mission being global strategic reconnaissance, I don’t see one, let alone a group of four flying so close to commercial airspace. A short video-history of the SR-71 can be found here.
The F/A-18 Hornet was my next best guess–the aircraft can be clearly seen from the ground, and are often used in US military airshows. One group of pilots that call themselves the Blue Angels are the Harlem Globetrotters of the air, and perform at military installations across the nation.
In the video below you can see that while in flight, even with pilots trained to do stunts, the F-18’s never break formation.
Another possibility that has been voiced by viewers are drones. The military UAV’s (unmanned aerial vehicles) are built for stealth and used primarily for recon, I doubt they would fly with “extra bright LED’s” attached.
I’m not sure what the lights over France are, but I know what they are not—the lights move in a way that is not consistent with contemporary aircraft. Any suggestions as to what they could be? Let us know here.