So "till" is not part of general preposition style rules? I'm just curious since the current title is on Wikipedia, but not on IMDb and both supposedly follow those general rules.

IMDb uses these rules (English language words which must begin with a lower-case letter (unless at the end of a title) are: a an and as at by for from in of on or the to with). I'm not sure what rules Wikipedia is using, but they are a bit different (adding more words for sure). As to what rules we're using, I've no idea?

Thanks. Let's wait for one more opinion about what to do here.

I changed it. It looked bad, the distributors all appear to use Till, afaik we always capitalize longer prepositions, and Wiki is ridiculously inconsistent.