Definition...kinda

The frame is what delimits the image it is the spatial boundary of what the camera captures. It’s function is to selects a set from the universe, a slice or portion of reality and organises it into a closed system.

Deleuze describes that as rather than being a passive boundary, the frame is an active composition. It relates elements within itself (Truman’s face, the background of the bathroom, typical bathroom objects) and simultaneously connects to what lies outside (off-frame space, which in this case is both the wider world of Seahaven and the Truman Show audience space). The frame conditions how movement and time are perceived, it’s not merely about visibility but about relational possibilities.

Think of the frame as a force-field: not just enclosing action, but determining what kinds of movements and connections can emerge

Link to more about FRAME - cinema 1