Lola Tung, Chris Briney and Mikey Madison are taking over Hollywood. Here’s a look at more young stars—on screen and behind the scenes—shaping the business of entertainment. Anna Cathcart walked onto ...

After years of working in the industry, many actors start production companies of their own. Reese Witherspoon and Nicole Kidman, for example, produce some of the titles in which they star. Plan B, ...