The Empire Strikes Back
(1980) directed by
I've been thinking. Do the Organas think Padmé gave Leia an Alderaanian name? Like if they think to look it up they might find a few hits in other cultures (because with that many planets, you might have more than one convergent name) but not for Naboo and not for any of the other planets Padmé had ties to (Tatooine of course, doesn't come up) and so Alderaan is the most relevant.