Margot Robbie has formally taken her husband Tom Ackerley’s last name in corporate documents nearly 10 years after marrying the film producer. The “Barbie” actress, 36, is listed as Margot Ackerley in documents published by Companies House, the UK’s business filing agency, for the couple’s production company, LuckyChap Entertainment, as of Tuesday. The filing, which was received on Monday, noted the change from “Margot Elise Robbie” to “Margot Elise Ackerley.” She had used her Robbie surname since she was appointed director of the production company in May 2015. Robbie is expected to continue using her maiden name professionally. She and…