With the planned sale of Hello Sunshine, the studio she started in 2016, the Oscar winner joins the ranks of Hollywood’s power brokers.With the planned sale of Hello Sunshine, the studio she started in 2016, the Oscar winner joins the ranks of Hollywood’s power brokers.Read MoreMergers, Acquisitions and Divestitures, Private Equity, Movies, Blackstone Group, The, Hello Sunshine, Witherspoon, Reese, Mayer, Kevin A