Deidre's Song - The Mangrove

The dreams are hollow and filled with sand
(On the edge of a cliff and a rugged precipice)
Castles built by foreign hand
(Stock still as the porcelain beside the prone widow)
Make me a mangrove that I may demand
(As tides rise and fall washing away)
My roots to grip the salty sand
(Elaborate pillars of salt and sand)

Doll

Painted on the marble stretch
Macabre red on heated stone
Lilting laugh at nothing latched
To nimble fingers laced with flax

They clambered up the too-high steps
By mirrors' light on plaster splashed
Opened the little door to fetch
The button eyes and needle thread

They'll bring a toy for little girls
To perfect dollhouse woven
To place within a room once loved
For newest soul beholden

Can you guess what movie this is from?