The movies in Fang Qi's shop had been acclaimed be to rare treasures which allowed people to inherit combat techniques, spiritual spells, and improve their understanding of Dao. Although this claim was a bit one-sided, the movies and inheritance treasures had similarities.
For example, although the system's version of Jade Dynasty hid some Easter eggs in it, and Fang Qi had mastered the Godly Sword Lightning-Controlling True Spell by watching Water Moon Master teach it to Lu Xueqi, one didn't have to watch the teaching sessions to learn all kinds of spiritual spells and techniques showed in Jade Dynasty and other TV Series.