Horrific moment helicopters crash in mid-air during filming of reality TV show killing 10 including three French sports starsThe footage shows the sickening moment the two aircraft hit each other in the air, sending them spiralling downwardsThis horrifying footage shows the moment two helicopters crashed in Argentina, claiming the lives of 10 people , including three French sports stars.The footage, shown on Mendoza-based Televida9, shows the sickening moment the two aircraft hit each other in the air, sending them spiralling downwards in the rugged western province of La Rioja near the Andes mountains.Olympic swimmer Camille Muffat, yachtswoman Florence Arthaud and boxer Alexis Vastine were among 10 people killed when two helicopters collided in Argentina during the filming of a reality TV show.Several members of the ALP TV production company involved in shooting the adventure show "Dropped" for TV station TF1 were among the dead.Argentina helicopter crash: Sylvain Wiltord escapes reality show accident which killed three French sports stars