It’s nice to know that if your 747 gets struck with 40 kiloamperes of electricity that it can keep on trucking. Aircraft are designed to withstand lightning strikes (if not multiple lightning strikes), although various small amounts of damage can occur. As one 747-400 pilot at the Professional Pilots Rumor Network (pprune) commented, “the auto-pilot dropped out and a few minor systems were temporarily lost” after a lightning strike on his aircraft, but shortly after that everything resumed.
Lightning strikes happen fairly often on commercial aircraft, but rarely is the event caught on film. This ANA 747 was hit just after take off, which can be a critical time during operation, but everyone and the aircraft survived just fine.