White Flowers in Suzy's Yard

As Juliet is carrying the cat to Suzy's house, she walks through an area w/ delicate white flowers w/ almost bowl shaped heads and stems so very thin that it appears they are hovering midair. Can anyone tell me what they are or if they were made for the film? i've done loads of agricultural searches and closest i can find is some type of orchid but i'm not convinced it is an orchid b/c it doesn't have the other qualities needed to be an orchid.

"The mainframe is out of the coolant!" Mace (Sunshine 2007)