a salesman who's always looking for an 'angle' [=looking for a way to convince people to buy the things he is selling]
The two lines meet at a 30-degree 'angle' to each other. = There is a 30-degree 'angle' between the two lines.
The two lines form a sharp 'angle'. = The two lines meet/intersect at a sharp 'angle' (to each other).
(..) with a closed shutter. Like when you shoot those crisp water commercials. Then we bring in the crowd. We shoot those guys for all three angles. And while they are walking through the frame ... ... we're gonna ramp the camera from to . And in that moment, (..)2001 The Matrix Revisited