Ben Affleck walked the red carpet at CinemaCon in Las Vegas making his first public appearance since finishing a rehab stint just a couple weeks ago.br br The star looked sharp in a suit and appeared to be in good spirits as Justice League co-stars Henry Cavill, Jason Momoa, Ezra Miller, Ray Fisher, and director Zach Snyder joined him.br br Affleck had been keeping a low profile since announcing he had completed treatment for alcohol abuse on Facebook. He has been seen here and there with estranged wife Jennifer Garner and the two still are devoted parents to their children.br br But at CinemaCon Ben looked to be in great shape, flashing his smile and playing to the photographers.