Cinematography
Deep Focus
A technique using a large depth of field so that the foreground, middle-ground, and background are all in sharp focus.
In Depth
Championed by Orson Welles in 'Citizen Kane', deep focus allows directors to stage complex action in multiple planes of depth simultaneously, letting the viewer choose where to look without cutting.
Example
"Key scenes in 'Citizen Kane' where a child plays in the snow in the far background while adults discuss his future in the foreground."