When I read Hitchhiker’s Guide, I pronounced it b’tell-jew-EEss

There’s a thought that:

Never make fun of people for mispronouncing a word. It means they learned it by reading

Best I understand, this is a quote without a known attribution

colloquially it might be beetlejuice, but traditionally it’s more like betelgyse or betelgoosa

My dad was an astronomer, and as a toddler I thought it was the funniest name for a star. Then the movie came out and I was bugged that they misspelled the name for the promotional posters (but not in the movie itself).

It’s even more fun to look up the origins of the name - “hand/arm of the central one”. E.g. https://en.m.wiktionary.org/wiki/Betelgeuse

But only in English. In German though… it’s very strangely pronounced. Beite-zeus (but the z is soft)