 Martinez's first theatre show was "A Family Outing" in 1998, co-written with and directed by Mark Whitelaw.In this personal, autobiographical show, Martinez 'unpicked family life, myths and relationships with the help of her Mum and Dad who appeared alongside her on stage'.In the Guardian, Lyn Gardner wrote that the show was 'a seemingly improvised but cunningly orchestrated psychodrama about the pleasures, pains and embarrassments of family relationships in a format that is part game show, part Jerry Springer and part family photo album.