Diànyǐng zhōng chuānchā le dàliàng de huíyì jìngtóu.
The film interweaves many flashback scenes.
Tips
usage
穿插 covers a wide range: weaving subplots into a story, interspersing jokes in a lecture, taking turns at a task, or — in military reporting — driving troops deep through gaps in enemy formations. The common thread is 'thread through other things.'
memory
穿 (to pierce/thread through) + 插 (to insert) — both halves push the same image: pushing one thing through or into another.