The process of assimilation has been a common theme of popular culture. For example, "lace-curtain Irish" refers to middle-class Irish Americans desiring assimilation into mainstream society in counterpoint to the older, more raffish "shanty Irish". The occasional malapropisms and left-footed social blunders of these upward mobiles were gleefully lampooned in vaudeville, popular song, and the comic strips of the day such as "Bringing Up Father", starring Maggie and Jiggs, which ran in daily newspapers for 87 years (1913 to 2000). In "The Departed" (2006), Staff Sergeant Dignam regularly points out the dichotomy between the lace curtain Irish lifestyle Billy Costigan enjoyed with his mother, and the shanty Irish lifestyle of Costigan's father. In recent years the popular culture has paid special attention to Mexican immigration and the film "Spanglish" (2004) tells of a friendship of a Mexican housemaid (Paz Vega) and her boss played by Adam Sandler.