Audrey Hepburn (Eliza) and Rex Harrison (Higgins).
It sounds like you are looking for a version of the classic musical My Fair Lady and perhaps need to write a paper or essay about it. Where to Watch " My Fair Lady " with Vietsub my fair lady vietsub
An interesting feature for your (1964) Vietsub content could be a deep dive into the movie's legendary production secrets, especially the "battle" of the voices between Audrey Hepburn and Julie Andrews. 🎭 Key "Loverly" Features to Highlight The Secret Voice of Eliza : Although Audrey Hepburn Audrey Hepburn (Eliza) and Rex Harrison (Higgins)
: Rex Harrison (Professor Higgins) refused to lip-sync to pre-recorded tracks. To record him live, the crew hid a wireless microphone in his neckties—a first for a film musical—though it occasionally picked up police radio broadcasts from passing cars. A Million-Dollar Wardrobe 🎭 Key "Loverly" Features to Highlight The Secret
You can find My Fair Lady with Vietnamese subtitles on: