These two stars are NOT moving.
When the luminance of the background is changed over time, a strong illusory motion is perceived and the stars appear to move.
[🎞️ jagarikin]
Reminder that the legendary road runner chase in Kung Fu Hustle was basically live-action Looney Tunes physics.
Stephen Chow spent hours on wires using his own blue socks as a VFX reference while his crew spun him on a rotating disc. Practical effects win every time.