A movie disclaimer word is a statement that is included in a film to protect the producers from any legal action. The three words given are 'FICTITIOUS' (10 letters), 'COINCIDENTAL' (12 letters), and 'SIMILARITY' (10 letters). FICTITIOUS means something that is not real or true, and is often used to describe characters or events in a movie that are not based on real people or events. COINCIDENTAL means happening by chance, and is often used to describe events in a movie that are not related to each other. SIMILARITY is used to describe how two or more things are alike, and is often used to describe how a movie may resemble another movie or real-life event.