I'll never forget the time that my son's preschool called me in for a parent teacher conference, because his teacher had concerns.
When I got there, his teacher told me that DS and his best friend A, had been hugging too much ... at age three and a half. (A is Israeli and comes from a culture and family in which hugging is perfectly okay, regardless of gender.)
So I sat there for a minute, then I said, "Are you telling me that you're worried that my not-yet-four-year-old is GAY? Not that anyone could possibly know that a decade before puberty, but, since you bring it up, if he's gay, that's perfectly fine with me!" Then I gathered up my toddler and stomped the heck out of that poisonous place. Blech! When I told a GF this story one day last week, she said, "That's right! As a parent, you're going to support your kids, no matter how hard it is." And I thought to myself that she was missing the point. If DS is gay (or not,) I'll love him because he is who he is, not in spite of it.
Homophobia is everywhere and is more-or-less socially acceptable.
Anyway. I digress.
If you don't feel like you can do the film, there are still little things you can do -- like get a Safe Space magnet or card to display. Those little things can make a big difference.