Though he co-wrote the theme song for the 1986 comedy "Ruthless People" with Mick Jagger and Daryl Hall, Stewart took a greater involvement in the film industry in 1989 by writing and producing the soundtrack "Lily Was Here" for the Dutch film "De Kassière" (English title "Lily Was Here"). The single, also called "Lily Was Here" and featuring saxophone player Candy Dulfer, topped the Dutch charts for five weeks. The single also reached the UK Top 10 and peaked at No. 11 on the "Billboard" Hot 100 in the summer of 1990.