“Ocean’s 8” is on its way to a solid opening weekend of about $41 million from 4,145 North American locations. Warner Bros.’ women-led heist film, the fourth in the rebooted Ocean’s series, earned $15.8 million Friday, including $4 million from Thursday night previews. Earlier forecasts had placed the film in the $30 million to $44 million range. Sandra Bullock stars as Danny Ocean’s sister Debbie, along with Cate Blanchett, Mindy Kaling, Awkwafina, Rihanna, Helena Bonham Carter, Sarah Paulson, and Anne Hathaway. Ocean unites the women to pull off a diamond heist at the Met Gala. Gary Ross directs from a...