I recall watching that movie many years ago at a Scottish-themed party.

There was a fluent Scots Gaelic speaker at the party and he had a laugh at the scene using Gaelic.

Brigadoon was on TV last week and it's hard to watch, with the corny jokes and dated acting and absurd costumes and horrible fake Scottish accents.

Costumes and accents haven't got much better in recent years: just watch the newer Rob Roy, and Braveheart.