Interestingly, the last commercial I had was on a UAL 747-400 in a new rear-facing business class seat.
I was next to the window, the CA I was flying with that trip happened to be in the seat next to me. The view was perfect to see almost all of the wing from the seat without having to move around to see it all in action.
I was watching the wing with the leading edge flaps moving and the ailerons and all that. It was amazing what happened with that wing tip.
When the aileron would deflect downward, it was almost unbelievable how the wing section from the inboard part of that aileron outwards acted.
First, the wing would bend up, causing the trailing edge to be higher than the leading edge. The inboard ailerons are less effective, so the inboard part of the wing was slower to move. Then as the rest of the airplane caught up with the roll command, the wing returned to a "normal" look.
It was just crazy to see. You sit through a theoretical class, run the equations, look at all kinds of diagrams, and cross sections, but sitting and watching it under normal operations is quite an eye opener.