 Supervisor Lou L. Ostrow (qv) was so dissatisfied with the style  of the movie he wanted to replace director Jacques Tourneur (qv)  after four days of filming. Producer Val Lewton (qv) got studio  head Charles Koerner to reinstate Tourneur, and when Ostrow insisted  on the panther appearing in the drafting room sequence, Lewton had  Tourneur use low lighting putting the panther in the shadows.