1988 was a quiet year on the recording front for Madonna. Following the lack of critical and commercial success of her 1987 film "Who's That Girl", she acted in the Broadway production "Speed-the-Plow". However, unfavorable reviews once again caused her discomfort. Her marriage to actor Sean Penn ended and the couple filed for divorce in January 1989. Madonna had also turned 30, one year removed from the age at which her mother had died, and thus the singer experienced more emotional turmoil. She commented for the May 1989 issue of "Interview" that her Catholic upbringing struck a feeling of guilt in her all the time: