WASHINGTON — A Georgia film studio founder who has vowed to put $4 million behind his run for Congress was accused in 2017 of lifting former Major League Baseball All-Star Jason Heyward’s signature from a trading card to lure investors in a land deal. Republican Ryan Millsap , whose Blackhall Studios was used by Marvel for projects such as “Venom” and “Loki,” was slapped that year with a claim that he “fraudulently” induced an investment firm to sink $8.5 million into the purchase of a 52-acre