Here is an animated example of a film noir, it has key aspects of a noir but is not conventional.
The main difference of this to a conventional noir is that this is animated, however it still has film noir characteristics. The main character is a detective, however this clip shows him in a humorous way whereas a traditional film noir wouldn't. The majority of scenes are very dark with little lighting, however it's not black and white. At the end of the clip the old woman and detective are sitting around a circle table, there is a light shinning on the top which reminds me of a poker table that could be used in a film noir. The narrative of this short film is about crime but the twist is that the crime is in the detectives imagination, this could be used in a noir but without it being humorous.
 Unlike this short clip we'd plan for our film noir to be more traditional.