Its actually a good idea to use something like this because its suitably 'out there' when compared to what alot of people pick but it still has oodles of conventions. From what I can remember the detective himself was conventional - had most of the stereotypical detective qualities. Commenting on Trinity being the strong woman who wasn't a hardboiled fatale would be something I would put in(there were alot of angles demonstrating Trinity as "powerful" or authoritative). There's also the colouring which is used to mimic the noir effect. *racks brain* lol, I can't think of much more at the moment, but there is a fair bit in there that you could use.