A procedure is presented for the study of comprehension by viewers of the motivation behind the behavior of film characters. At the core of the procedure is a list of possible motives (possible causes of the characters' acts) which are to be assessed, and ascribed. Factor-analysis is used in order to establish basic motivational units, to reveal their hierarchical structure which supposedly corresponds to the personality structure of the assessed character. Psychosemantic studies performed with the help of the described procedure can supply data which would essentially supplement the material traditionally used by art critics.