Good point, but atitle would come under Copright law, not Trademark law.
For example, I can write a book and call it "Twilight". This is irrespective of any trademarks the author might have. The author can not copyright the word 'twilight' nor prevent it's use as the title of a book or any other media.
For titles of videos, you can use pretty much anything. That's why there are titles with the words 'Disney Frozen Elsa and Spiderman get married' videos. Those clearly impinge on trademarks, but are protected under Circular 34 for titles only. I hope this is correct ?!?!