The Simpsons - Season 15 (Also known as Gia Dinh Simpsons ) is a Animation Comedy film directed by James L. Brooks, Matt Groening, Sam Simon . It released on TV Series (2003 ). The film stars Dan Castellaneta, Nancy Cartwright, Julie Kavner. Homer's mother returns to Springfield, and the city pardons her from the charges against her. Mr Burns is furious about this and makes a plan to get Mona Simpson in prison.