Depression: (
Story/Location) Titles that contain characters who suffer from depression would fall into this category if this is of significant importance for the storyline.
Violent: (
Objectionable Content)
Titles that include as an important part of their content excessive displays of cruelty, blood and gore. Any of the classical 'slasher' films would qualify for this keyword. The series
Black Lagoon would be a good example; as many of its chapters involve killer lolis, chainsaw mercenaries and flying body parts.
Parody: (
Genre) This would be a title which closely imitates another title, genre, culture, etc. for comic effect or in ridicule.
Coming of Age: (
Story/Location) A story in which the main character is confronted with issues related to their transition from adolescence (innocence) to adulthood (responsibility). Most typically found in a modern romance story in which the main character has to confront his/her feelings over their (first) love and/or deciding about the path in life (setting goals, attending college, getting a job etc.).