I recently watched Riddick and I enjoyed the film and it felt like it was trying to be more like Pitch Black. Not really a spoiler but there were some references to the earlier film namely that Colonel R. "Boss" Johns is the father of the character in Pitch Black William J. Johns.
Here in lies my conundrum. The Colonel says hes William's dad. He refers to the Pitch Black movie as happening 10 years previous (pretty sure). I would have pegged William for mid to late 20's at the time of Pitch Black. The Colonel early to mid 40's maybe at the time of Riddick.
Is there anything that pinpoints those characters birthdays with respect to eachother? I suppose it is possible that the Colonel had William at a young age but even if he was 13 at the time it would still put his age at 48 at the time of Riddick (I think the actor was 41 at the time).
If the Colonel was his brother I wouldn't have batted an eye.