@Rvicoli
No, that won’t work and the reason is, that Apple just supports the functionality for certain Apple and Beats headphones.
You can’t share audio via the Ace itself. If the device you are watching the movie on allows two sets of BT headsets to be used at the same time then that is possible.
Thanks for the info. I had a feeling Apple might prevent that feature which is something I would want to have. They sorta force you into their products.