777 spoilers
 

Saw this in a recent report:

“If the speedbrakes started to extend on the initial touchdown, they will retract once the airplane becomes airborne again on a bounce, even if thrust is not increased. The speed brakes must then be manually extended after the airplane returns to the runway.”

Is this true for all 777 series?

That's more or less correct, if any of the auto speedbrake deployment conditions are no longer present, then they retract. That may be MLG on the ground, or thrust levers not in takeoff range, or thrust resolver angle valid.

I didn't want to click on this, because I haven't seen the movie yet.