Billy Chapin in Night of the Hunter (1955, dir. Charles Laughton)
"One of the shots in the picture most frequently commended by critics  occurs during John and Pearl’s journey down the river, when they decide  to spend the night in a barn…John (Billy Chapin) awakens and, seeing Preacher (Robert Mitchum) riding in the distance, wearily comments, ‘Don’t he never sleep?’
Although it is often assumed that the shot is a  special effects shot using Mitchum, it was actually accomplished on a  sound stage with the use of forced perspective. The camera was set up in  the barn behind Billy Chapin and focused out onto the sound stage. In  the distance, Chapin’s stunt double, a dwarf dressed as Preacher, rode a  small pony. The angle of the camera made it look as if Billy was gazing  at a full-grown man riding in the distance.”
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Billy Chapin in Night of the Hunter (1955, dir. Charles Laughton)

"One of the shots in the picture most frequently commended by critics occurs during John and Pearl’s journey down the river, when they decide to spend the night in a barn…John (Billy Chapin) awakens and, seeing Preacher (Robert Mitchum) riding in the distance, wearily comments, ‘Don’t he never sleep?’

Although it is often assumed that the shot is a special effects shot using Mitchum, it was actually accomplished on a sound stage with the use of forced perspective. The camera was set up in the barn behind Billy Chapin and focused out onto the sound stage. In the distance, Chapin’s stunt double, a dwarf dressed as Preacher, rode a small pony. The angle of the camera made it look as if Billy was gazing at a full-grown man riding in the distance.”

(via)