The IMDb - the International Movie Database (http://www.imdb.com) - is a handy source of data for logology.
Dipping into it recently I was pleased to unearth a fourteen-step transpositional ladder starting with Steven Spielberg's sublime classic 'ET - the Extraterrestrial' and ending with the ridiculous romantic comedy 'Miss Personality'.
"Logology in Hollywood,"
Word Ways: Vol. 41
, Article 12.
Available at: https://digitalcommons.butler.edu/wordways/vol41/iss2/12