Most filmmakers use twitter to push out their content when it can get easily lost in the thousands of other tweets lining up in the hashtag they've just used.
Use search modifiers to hone in and find people who actually have an interest in your film's subject matter, and start growing that audience!
My 'everyday' search (copy & paste, replace the " " with your keywords/search term): "search term" ? -filter:replies -filter:links
Link to full list of search modifiers here:
http://lifehacker.com/search-twitter-...
Find me on twitter:
/ ibeafilmdude