Amelia and the Angel

A young girl (Amelia) is distressed and feeling guilty about losing the wings she was to wear in her school play. Then she notices an angel and follows the angel into a dark building. Upstairs in the attic, bathed in heavenly light, is an artist's model - the ANGEL. The painter ascends a ladder until he is out of shot - supposedly to heaven-and reappears to restore Amelia's joy with a pair of wings (imdb)