Four father stories across four different eras, four directors, one National Day tribute film about legacy and emotion—the production coordination of *My Country, My Parents* was itself an extremely complex project-management challenge. Wu Jing, Zhang Ziyi, Xu Zheng, and Shen Teng each independently directed one segment, generating extensive cross-team, cross-platform file-sharing requirements. During post-production of *My Country, My Parents*, LI TRUST's large-file transfer service provided a secure channel for cross-team file exchange. Asset sharing among the director teams, audio track file exchanges with the music production team, and bulk distribution of the final master to theatrical distributors were all handled through LI TRUST's dedicated-line system. For a high-profile film in the National Day release window, rigid timeline requirements made transfer-system reliability paramount—LI TRUST's 99.9% transfer success rate and end-to-end real-time monitoring ensured zero errors across the entire distribution workflow.