Article continues below advertisementJim Carrey's headline-making speech at the César Awards was 100 percent authentic.After drag artist Alexis Stone claimed he impersonated Carrey using prosthetics and a wig at the Thursday, February 26, event, the awards show shut down the conspiracy theory.Article continues below advertisementSource: MEGAJim Carrey won the Honorary Prize at the César Awards."Jim Carrey's visit has been planned since this summer. From the outset, he was extremely touched by the Academy's invitation. Eight months of ongoing, constructive discussions.