Carrying a sign reading "overconsumption = extinction," at least one of the protesters representing Amis de la Terre France, Youth for Climate and Extinction Rebellion marched down the same path as the models, causing a stir in the audience, a Reuters witness said.The protester was wrestled to the ground by security before being led away.In the front row, French cinema stars Catherine Deneuve and Isabelle Huppert hardly flinched, while some members of the Arnault clan, seated next to LVMH chief executive officer and chairman Bernard Arnault, glanced at each other.Another protester also carrying a banner made it onto the catwalk briefly before being led away by security.