To quote infamous exploitation film producer David F. Friedman:
"Say something good, or say something bad.
But, for God's sake, say something!"
Attention alone creates value.
Positive and / or negative attention.
It doesn't matter.
And in our digital world, getting attention is cheaper than ever before.
It's like having access to free money.
All you need is ingenuity and thick skin.
What will matter most in marketing your movie is getting it mass attention...