Translations are not one-to-one. A sentence in Italian ("Non posso credere che siamo arrivati fin qui!") may take three seconds to speak, while the English equivalent ("I can't believe we made it this far!") might take two. Consequently, subtitles are rarely a direct transcription; they are an adaptation.
While searching for a specific "link" or download for (Studio Ghibli's Castle in the Sky ) with Italian audio and English subtitles, it is important to navigate the world of international cinema legally and safely.
Grainy video or "fan-subs" with inaccurate translations.