EXCLUSIVE: Tobey Maguire has joined the cast of the Jason Reitman-directed Labor Day, which begins shooting this month in Massachusetts. Indian Paintbrush is producing. Maguire is the final major piece alongside Kate Winslet, Josh Brolin, J.K. Simmons, Brooke Smith, Gattlin Griffith, and Brighid Fleming. Reitman wrote the script, an adaptation of the Joyce Maynard book.