Yes. Whisky Galore is based on true events, although some artistic liberties might have been taken to make it more engaging and cinematic. But the core of the story is drawn from reality.
It's not a true story. The film is more of a creative imagination, although it might draw inspiration from some common situations or cultural elements, it's not based on actual events.
Obviously, Harry Potter himself is likely to be one of the main characters. He often gets involved in all sorts of magical happenings. Hermione and Ron might also be there, as they are Harry's closest friends and usually accompany him in adventures.
There was an ebony wife who started a community garden project in her neighborhood. She involved all the families and it became a place for unity and sharing. Her leadership skills and community spirit were truly inspiring, which is a great aspect of many ebony wives' stories.