What is the fine-grained topic of the following text: David Harrower, Rooney Mara, and Benedict Andrews of ‘Una’ pose for a portrait at the 2016 Toronto Film Festival Getty Images Portrait Studio at the Intercontinental Hotel on September 14, 2016 in Toronto, Canada. Only return the topic.
David Harrower, Rooney Mara, and Benedict Andrews posing for a portrait at the 2016 Toronto Film Festival.