This is the DARKEST, & MOST VIOLENT of the series.. It is also the MOST TRAGICALLY EMOTIONAL entry as we witness a near vulnerable Riddick put through his most physical & mental tests throughout the picture, in a much more desperate/darker side to him than we've seen before where his intellect & ingenuity are his greatest allies ..
There are a lot of frightening scenes in the movie.
Intense scenes included in the above posted material are considered Frightening & Bloodily Violent
The night time looks scary and creepy with the big scorpions.
The atmosphere of the whole movie is dark and depressive with blood thirsty creatures and death all around.
The musical score by Graeme Revell is dark, simplistic, emotional, & powerful, complementing the tones of the film perfectly ..
One main antagonist, Boss Johns, the father of William Johns from Pitch Black, has a personal vendetta against Riddick for the "crime" he committed during the events of Pitch Black. He is seen interrogating Riddick during one scene, showing that he is only an emotionally damaged father trying to reconcile the past. He ends up forgiving Riddick in the end & promises to clear his records clean, telling Riddick to not tell him where Riddick is headed next.
Riddick's Final Stand against the army of Scorpion Aliens is Brutally Violent & Grippingly Dramatic as Riddick fends for his life as he climbs higher & higher up a mountain side, with Intensified Orchestral Music & Riddick at the very point of sudden death.
In the Director's Initial Ending, Riddick flies back towards Vaako' shuttle only to find Krone kneeling before the Underverse. Krone tells Riddick that Vaako, being a decent man, had every intention to bring Riddick back to his home world of Furya, while Krone pulled the strings to abandon Riddick on the deserted planet. In return, Riddick skews Krone's skull, killing him, while uttering "too many words". Riddick turns to the servant girl who is shown with a reddish mark on her face (similar to Krone), & asks her to tell him whether or not Vaako is alive, promising not to kill her; The servant girl responds "both", indicating that Vaako has traversed into the Underverse .. As the camera fades out, Riddick walks towards a circular portal; Vaako' line of "Transcendance" is audible as Riddick is shown looking out into the desolate galaxy of the Underverse .. Haunting & Emotional music soars through this Powerful moment ..
Suggested MPAA rating : R for Strong Violence, Language, Some Sexual Content/Nudity, Grisly Images, & Thematic Material.