John Magaro is the star of "First Cow," which premieres July 10 on video-on-demand platforms. He’s done the splashy-role-that-didn’t-go-anywhere thing twice, first in Wes Craven’s slasher flick “My Soul to Take” and again in David Chase’s bittersweet ’60s-rock flop “Not Fade Away”. Since then, Magaro has loaded his resume with impressive supporting turns in “Unbroken,” “Carol,” “The Big Short,” “Marshall,” …
