Yes, because it makes people more reflective and accurate reasoning. Scholars have changed the mood of volunteers asked to recall pleasant or unpleasant events of their lives and making them see different movies.
Reflection
Later, people with bad mood were more critical in judging urban legends and more accurate in recalling events. The study concludes: "The positive moods seem to promote creativity, flexibility, cooperation and reliance on mental shortcuts, while negative moods trigger more accurate reflections and more attention to the outside world."