Oz Moment
That moment in cinema and real life when a scene change so stark in contrast occurs that the psyche breaths a collective sigh or delicious inhale while taking it all in. The Oz Moment in the film The Wizard of Oz was when Dorothy first opened the door of her house onto Muchkin Land and the film shifted from black and white to technicolor.
Upon awakening their first morning in the Italian Villa they'd rented, the film "Enchanted April" conveyed an Oz Moment through the brilliant, floral vista along the Italian coast.