From “Baby Driver” to Netflix’s “Ozark,” Hall County has been an occasional second home for Hollywood. And it’s a home that Stacey Dickson, president of the Lake Lanier Convention & Visitors Bureau, would like to see maintained. “If Georgia were to cancel the film tax credit, we would very likely see projects like this go elsewhere to film,” she said.The popular but expensive state tax credit, which has come under scrutiny after a state audit showed lax oversight, has emerged as a hot topic in this year’s legislative session, which got underway Jan. 13.