IMHO
MOVIEEND can be used as a site which has only the ending scenes of a movie. Lot of people just want to relive the ending of a movie (I do).
For this purpose, MovieEndings would have been an proper name, but it is close, and it is short (better).
If you are into developing sites, I think you can develop this to a pretty decent one.
Try to get copyrights only for the endings so that people who don't find it on youtube, can come over to your site - if you want to monetize through memberships
Your site logo can be like
MOVIE
END
so that it has better visual recall and readability.
You have a lot of SEO work up ahead.
The others who replied are more knowledgeable ones. I am a hopelessly optimistic person. Though it may not be a wise decision, but if I was in your situation, (as the others suggested) I would retrospect about the reason I took this domain in the first place. If I feel strong and optimistic about it still, I will put my heart into it.
I have left many babies of mine just go off into someone else's hands just because I didn't have the time, was lazy or didn't have the money. If I had the money, I would hold on to every one that I registered ( I haven't paid premium for any yet).
BTW, I have never earned out of a domain yet, either selling or developing, so maybe I am just all talk. You mentioned you sold one for a decent amount. Good for you!
Cheers and good luck!