If the menus are in English but the characters do not speak during cutscenes, your sound_english.dat file is missing, corrupt, or incorrectly named. Verify that the files in data_win32 match the exact spelling required by the engine.
Before you download external files, try this method, which works for 90% of users who already have the data installed but locked: english language pack for far cry 3 link
Extract your downloaded English pack. You should see files named: common.fat / common.dat english.fat / english.dat (or similar) If the menus are in English but the
Launch Far Cry 3 through your preferred platform. Head immediately to the main options menu, select , and look under Subtitles and Audio . You should now see "English" available as a selectable option. You should see files named: common
If this is your situation, here are your options:
Restart the game once more to ensure all text changes take effect.