I'm sorry if this has been done before. Anyways, I was wondering what you all would think about Killer Moth being the main villain in a Batman film. Does that sound good? Let me know what you guys think.
If they gave him a army style black jumpsuit with the Arkham mask (no horns or antennae), never referred to him as Killer moth or related him to moths in anyway (except maybe a speech that referred to "moths to a flame" or something like that somehow), and made him a terrorist or assassin, the answer would be it could work, but will never happen.
Killer Moth's claim to fame is that he launched Barbara's Batgirl career pre-52. He does have some potential but he'd need a complete redesign and such.
Oh also, pre-new52 he became mutated and if you used that you could create a fairly good movie, but he's far too unknown and you need a lot of work to get there which hollywood will never do.