Walmart and P&G Family Movie Night is back with a brand new thriller, Who Is Simon Miller? This fast paced made for TV spy drama airs Saturday, August 6th at 8/7 central on NBC. Simon Miller (Loren Dean) is a geologist mysteriously disappears one night, and his family is on a frantic mission to find him. His wife Meredith and their two kids Sarah and Kevin begin searching Simon’s office and find numerous passports with Simon’s face, but with different…