There are numerous interpretations of the musical and then Movie in 1954

The Broadway Musical
Music by Frederick Loewe
Book & Lyrics by Alan Jay Lerner
Produced by Cheryl Crawford
Directed by Robert Lewis
Choreography by Agnes de Mille
Opened March 13, 1947 at the Ziegfeld Theatre, (New York) and ran for 581 performances.

Original Cast included: David Brooks, Marion Bell, Pamela Britton, Lee Sullivan, George Keane, James Mitchell, William Hansen, Elliot Sullivan, Helen Gallagher, Hayes Gordon & Lidija Franklin

The Movie 1954
Gene Kelly (His first choregraphy)
Cyd Charisse
Van Johnson

Here are few sites of the ones that seem to catch the mood and background of Brigadoon. The musical on Broadway starred Marion Bell. This was the first Movie choreographed by Gene Kelly.

There is a phrase by the Reverend that has caught everyone's attention. "When you love someone enough, anything is possible, even miracles". I've changed the phrase just ever so slightly". "When you care enough, anything is possible". It's the principles and people we care about that really matter in this world.

http://www.turnerlearning.com/tcmbythebook/stage/brig.html

http://www.theatrehistory.com/american/musical007.html

http://www.greenmanreview.com/cd/cd_va_score_brigadoon.html

http://www.moria.co.nz/fantasy/brigadoon.htm