There is an Oscar winning film that depicts (in part) the Romani inclusion in the Holocaust: Son of Saul (2015).. The lead actor is Romanian (which, I know is not the same) who plays a Jewish main character, but the film itself directly contains scenes of the Sinti and Roma inclusion in the camps.
There are also several other good films that depict the Romani aspect of the Holocaust—even one whose name quite literally the same point you (correctly) made: A People Uncounted (2011).
Some others:
- And the Violins Stopped Playing (1988)
- Korkoro (2009)
The irony (for anyone not clear on it or not catching it) is that the Israeli military forced the captives to wrap themselves in the flag of Israel—which prominently features the star of David—so that soldiers could take pictures of them that could be circulated to humiliate the activists.
Where else have we heard of people being forced to wear the star of David so that everyone could point and laugh and humiliated them?
Israeli soldiers are so eager to "tea bag" their enemies with their own flag that they're unable to see the irony.