Lovett has acted in a number of films, notably four for director Robert Altman: "The Player" (1992), "Short Cuts" (1993), "Prêt-à-Porter" (1994), and "Cookie's Fortune" (1999). He also composed the score for the director's "Dr. T & the Women" (2000). Some of his other film roles include "Bastard Out Of Carolina" (1996), "The New Guy" (2002), "" (2007), and a humorous role in "Angels Sing", a family Christmas movie (alongside fellow actors and musicians such as Harry Connick, Jr., Connie Britton, Willie Nelson, and Kris Kristofferson). His television acting forays include guest roles on "Mad About You" and "Castle", a recurring role on "The Bridge" (as Flagman, a lawyer), and appearances as himself on "Dharma & Greg" and "Brothers & Sisters".