Does perceived realism really matter in media effects?

Memory, perceived realism, and emotional responses to documentary and fictional film excerpts were investigated experimentally using adult participants. Documentary stimuli were perceived as more factual than their fiction counterparts at both semantic and syntactic levels. However, contrary to expectations, memory for visual and verbal information and the intensity of emotional reactions were greater overall for fiction films. Films whose content corresponded to well-known social themes and film genres also had a greater influence on memory and emotions. In general, it appears that perceived factuality does not have as compelling an influence on adults as it does on younger viewers. Results are interpreted in terms of the differences between cinematic attributes of documentary and fiction films and between the cognitive processes activated by these two film genres and by different themes.