The success of "Raiders of the Lost Ark" spawned several sequels. "Indiana Jones and the Temple of Doom" was in development by 1982, while the original was still in theaters. It serves as a narrative prequel to "Raiders of the Lost Ark", following Jones' quest to recover the sacred Shankara stones and liberate the slaves of the cult leader Mola Ram. Spielberg returned to direct, based on a story by Lucas with Ford again in the lead role. "Temple of Doom" was a financial success, becoming one of the highest-grossing films of 1984 and breaking box office records. It fared less well with critics who accused it of racism and misogyny. It was also criticized for its darker tone and violent content that children saw because of the more lenient PG rating. Parents' response to this led in part to the creation of the PG-13 rating.