Jake Sully (Worthington) is a lame ex-marine while Frodo Baggins (Wood) is a Hobbit or a Halfling, a Middle earth creature no taller than 4 ft. 3. Both movies introduced invented languages. Avatar features the Navi language while Lord of the Rings presents the Elvish language. The Navi language was created by Paul Frommer, a professor at the Marshall School of Business while the Elvish was J.R. R. ... Advertisement. Diamondwave $50 off $500 or more! Orlando Vacations ...