If you meant something else by "complete feature" (e.g., building a subtitle download feature in an app or website), please clarify, and I can give a more technical or detailed answer.
It looks like you're looking for the for the musical film My Fair Lady (1964). my fair lady vietsub
Pompous linguistics professor Henry Higgins bets he can transform a Cockney flower girl, Eliza Doolittle, into a refined lady of high society. If you meant something else by "complete feature" (e