Short Film: An old black man living in a quiet retirement home finds a record player than, when used, makes the listener(s) young again..

Agreed with the above, the premise has some intrigue in it.
Not sure how the MC being black is related though, is this set at a time before the civil rights movement? Does his skin colour present him with obstacles?

Most good MCs have character flaws, does he have one??

And before anyone tries to jump on a high horse, I am well aware that racism is, unfortunately, alive and well in many forms and against pretty much all skin colours nowadays.
All I'm asking is whether there is a specific reason for that description, as it doesn't read like there is. Every word counts in a logline.

I like the idea...it sounds like a similar concept to "Hot Tub Time Machine." Does the conflict come when they are young? Do they discover something about their past? Do they just become young in the present time...or do they go back in time? Do they come to realize that age and experience is better/worse than being young again? How young do they become?

I like the concept. Sounds a bit familiar. Has it been showcased on other screenplay sites such as Simply Scripts or the like?