What was the reason you watched it? How was it? If you haven't, any movies/series in mind that you are considering?
I think the first approach was Victor Victoria. No reason it just was on tv, there must be a reason. This was ages ago but my sensation is that was a powerful story.
Now a days is hard not to find on any story an LGTB added character but is hard to find the story supporting it.
For example on money heist season 5 a character was supposed to be trans but it was portrait by a woman born as woman making the attempt laughable.
On star trek discovery they make a couple between the doctor and a science officer but even they appeared to be gay on real life it didn't add anything to the story and felt forced to me, I mean riker could easily be bi or even gay overcompensating but I wouldn't feel anyway different about riker whatever his orientation was, perhaps is better to leave the sexuality untold and let the viewers assume his.
On black sails there is a twist but its wonderfully performed, I don't want to spoil it for anyone.