It's Penny Proud's 16th birthday, and she is excited for herself and her friends to be part of Fifteen Cent's dance group, due to the fact that he's Sticky's cousin. However, when Fifteen drives her home, her father, Oscar Proud, gets mad when he finds them kissing. He grounds Penny indefinitely and cancels her birthday, after which Penny outrageously resents him as her father. Oscar manages to create a serum that could make his Proud Snacks tastier but it instead causes the snack to expand and explode. As he is hauled away, he protests that his formula has no expiration date, which is overheard by Dr. Carver, who has been trying to create an army of humanoid peanuts but never got his formula stabilized and plots to get it. Disguising himself, Carver invites the Proud family to Legome Island. Trudy forces Oscar and Penny to go, hoping they will bond. Upon arrival, the Prouds meet the Cashews, dwarf-sized creatures made from peanuts. Carver tries to negotiate obtaining the formula from Oscar but when he refused, he reveals he has created peanut clones of his family from DNA snatched from them while they were partying. Oscar runs away and tries explaining to his family but they don't believe him. Meanwhile, the clones get a mix-up when the real Penny comes with them back to the mainland to search for the formula, while her clone remains with the original family. Penny soon enjoys the free life, which the clones allowed her, but gets tired of it soon enough. At that moment mysterious Cashew leads the Prouds and the Penny clone on a perilous journey to the other side of the island, saying there is someone who can answer their questions. Along the way, the Penny clone proves to be the kind of daughter Oscar desires—obedient. When they meet the person the Cashew wanted them to meet, he turns out to be Dr. Carver, who explains that he created a clone of himself out of a peanut. Unfortunately, the clone went sizzling crisp in the sun one day and turned to evil. Donning a disguise of his original form, the clone took over the island and the Cashews, turning Carver's peanut research for evil. Oscars realizes his formula is the key and tells the family he had left it in a locket for Penny's birthday, which she opened back home. Her clone informs the other clones, who take the formula. Penny gathers her friends to go back to Legome and rescue her family. Unfortunately, the Carver clone is set to bring his peanut soldier army to conquer the world and had already left. The original gives Penny a container of gas that could instantly turn solid peanuts into peanut butter. Just as Penny was on the verge of releasing the gas, the clone offers her the free life—without rules or responsibilities. However, Penny retorts that her family is looking out for her and unleashes the gas, foiling the clone's plot. Penny and her friends then end the movie with a song.
The score to the film was composed by Elika Alvarez, Frank Fitzpatrick and Freddy Sheinfel. The film features new songs written by Frank Fitzpatrick, Jorge Corante, Robyn Johnson, Stephen Anderson and Jayne Houston, along with covers of calypso songs. The songs featured in the film are:
"Blowin' Up the Spot" - Performed by Omarion Grandberry
"Right Here" - Performed by 'Jhené Aiko'
"Boom Boom Boom" - Performed by Arsenio Hall
"If I Ruled the World" - Performed by Arsenio Hall
"Looking for the Perfect Beat" - Performed by Afrika Bambaatta & the Soulsonic Force
"Together Makes it Better" - Performed by Kyla Pratt, Alisa Reyes, Karen Malina White and Soleil Moon Frye
Release
The Proud Family Movie premiered on Disney Channel on August 19, 2005 and was released on VHS and DVD on December 6, 2005 with an extended ending. The film re-aired again on Disney Channel on May 28, 2016, as part of Disney Channel's 100 DCOM Marathon to celebrate the 100th film, Adventures in Babysitting. As of November 12, 2019, the film was available to stream on Disney+.
