Complex sentence: In general, the films presented are comedy, adventure and action in some cases, once the session had all kinds of movies, but with the emergence of classifications indicating the session has lost much of its heritage as it cannot display them on time.
Split into simpler sentences: In general, the films presented are comedy, adventure and action. At one point session had all kinds of movies, but with the emergence of classifications indicating the session has lost much of its heritage as it cannot display them on time.