The Grudge 3 is a 2009 American supernatural horror film directed by Toby Wilkins and written by Brad Keene. The film is a sequel to The Grudge 2 (2006) and the third installment in the American The Grudge film series. The film stars Johanna Braddy, Gil McKinney, Emi Ikehata, Jadie Rose Robson, Beau Mirchoff, and Shawnee Smith, with a special appearance by Matthew Knight. It features a linear plotline unlike all of its predecessors, which used nonlinear sequences of events for their respective plots and subplots.

The Grudge 2 is a 2006 American supernatural horror film directed by Takashi Shimizu and written by Stephen Susco. The film is a sequel to The Grudge (2004) and the second installment in the American The Grudge film series. The film stars Arielle Kebbel, Amber Tamblyn, Jennifer Beals, Edison Chen, Sarah Roemer, and Sarah Michelle Gellar who reprises her role from the first film. Like its predecessor, the film features a plot that is told through a nonlinear sequence of events and includes several intersecting subplots. It follows Karen's younger sister Aubrey coming to Japan after finding out about Doug's death, a schoolgirl named Allison being haunted by the ghosts of the Saeki family after entering the house with two of her classmates, and a young boy named Jake whose apartment building is haunted by the ghosts.