The phrase "titular creature" refers to the main or central character or creature in a story, movie, or book title. It is the character or creature that the title of the work is named after. Full definition
After accidentally unleashing the titular creature upon the populace, the pair must pull out all the stops to ensure the safety of their quaint town's various vegetables. (reelfilm.com)
Nimrod Antal's 2010 sequel / pseudo remake / homage, «Predators» owes 100 % of its success to John McTiernan's original and not just because of the titular creature. (dvdtalk.com)
Whilst elements of the presentation raise a smirk or even a giggle (including the alliteration efforts of Popper's pithy personal assistant, played by No Strings Attached's Ophelia Lovibond), and the titular creatures charm as anticipated, there's no mistaking this saccharine star vehicle for anything other than middle of the road school holiday fare that might even inspire a few pet purchases. (playslashpause.com)