originalen477 characters
Hyper-realistic cinematic 15s action sequence. A rider accelerates along a narrow cliff trail as debris falls behind. Dust, falling rocks. Action is straight forward. Continuous seamless camera aligned with trail. Start front tracking, low and fast. Slide to side tracking near the bike. Snap into tight rear chase. Rise slightly to reveal collapsing path. Mid-sequence, trail narrows. Camera stays rear, slight side offset during pass, then re-centers. End continuing forward.