Sebbens secured a role in "The Sapphires" (2012), a film based on the stage show of the same name, written by Tony Briggs. It was directed by Wayne Blair and also starred Deborah Mailman, Jessica Mauboy, and Miranda Tapsell (who also co-wrote the script). Sebbens played the role of Kay McCrae, one of four Indigenous Australian singers "who travel from a mission in Victoria to Vietnam to sing for American troops". The cast attended the film's premiere at the 65th Annual Cannes Film Festival in Cannes, France on 20 May 2012.