It is not that uncommon that aircrafts are being hit by lightning during flights. It is actually estimated that most commercial planes are hit by lightning at least once a year. In fact, planes can cause lightning to form when flying through storm clouds. But it is not that common that jets are getting filmed while being struck by lightning bolts.
The Emirates A380 captured in the video was being hit by a series of lightning during its flight from Dubai to London just when the plane was prepared to land at Heathrow International Airport. The plane landed safely a few minutes later, none of the 500 passeners on board the fligth were hurt and the plane was not damaged.