“The Other Sister” has a wedding harpist
Serendipidy has a wedding harpist
Annie – Grace plays the harp (on the wrong side) during “We’ve Got Annie”
There also is a Shirly Temple movie, when she was a young adult where the love interest’s girl friend is a harpist and performs for a garden full of listeners
The Kay Kendall/ Yul Brenner movie – “One More Time with Feeling” is a hoot!