For me a 5 letter would have to be a well-known acronym or initialism, a proper word, or at least pronounceable (for a brandable).
I think your chances with this one are probably slim, but good luck anyway
Well, this is a very (very long!) acronym no one could possibly know (outside of IMDb) what you are taking about. Similar 4 letter acronyms will have a hard time selling. Don't count on IMDb. If you have to "adjust", just don't. Don't hope IMBb will buy this from you. They won't.