Elizabeth W. Alexander, producer of independent films including “Big Night,” “Joe Gould’s Secret,” “The Imposters” and “The Mudge Boy” and the wife of actor Titus Welliver, died on Oct. 23 in Los Angeles after a long battle with cancer. She was 52.Alexander earned her first film credit as associate to producer on Herbert Ross’ 1995 comedy “Boys on the Side,” starring Whoopi Goldberg, Mary Stuart Masterson and Drew Barrymore. She worked on several films with Stanley Tucci beginning with 1996′s critically acclaimed “Big Night,” which Tucci co-directed and co-wrote while starring in the film with Tony Shalhoub; Alexander was associate producer. She was producer on the Tucci-written and -helmed 1998 comedy “The Imposters,” in which the actor starred with Oliver Platt, and on the Tucci-directed 2000 film “Joe Gould’s Secret,” in which he starred with Ian Holm. Alexander was also producer of the 2003 film “The Mudge Boy,” starring Emile Hirsch. Alexander was born in Philadelphia. In addition to her husband, an actor best known for his roles on “Deadwood,” “Lost,” “Sons of Anarchy” and “The Good Wife,” Alexander is survived by a daughter, born in 2006, and two stepsons.