In narrative terms, the length of the dissolve is dictated by the mood or pacing the director or editor wishes to create. For instance, in the opening sequence of "Citizen Kane", the dissolves between the master shots are slow because of the pervading sense of morbidity Welles and his collaborators wished to create. In the "News on the March" (montage) sequence shortly afterwards, however, the dissolves are much shorter as the intention is to create a sense of vitality in the life of the still mysterious lead character and speed in the (supposedly) newsreel sequence.