Written by Kim Fuller and Paul Alexander, and directed by Nigel Dick, the film mostly features songs from the group's album of the same name including "Don't Stop Movin'" and "Never Had a Dream Come True".

The film opens at the fictional Eagle Peak castle in Hollywood, where evil scientist Victor Gaghan is creating his S Club clones.

After spending the day promoting and performing, the group get excited about having some time off, until their manager Alistair informs them that they will be leaving for Los Angeles at 7:00 A.M. the next morning.

After the stressed-out group enter their hotel rooms, Alistair is abducted by Gaghan's assistant Susan Sealove.

Instead of using a credit card that Rachel finds to pay the bill, they use it on pampering themselves and after going bankrupt, they see the cloned S Club performing live on TV at a nearby cafe.

In jail, they learn that the warden likes to dance and to escape, they sing "Don't Stop Movin'" and get to their friend Natalie.

After failing to get close to their doubles during a live concert, they decide to switch out their Hannah, Rachel and Jon for their copies during a music video shoot.

Hannah, Rachel and Jon see that the Bradley, Tina and Jo clones have no belly buttons, and are exposed to their rituals of showering together, constant rehearsals, eating strange synthetic food and being brainwashed during bedtime.

In the dining area, S Club are alarmed at the clones Gaghan has created including clones of AC/DC's Angus Young, King of Rock & Roll Elvis Presley, Will Smith as Men In Black's Agent J, Victoria Beckham (as Posh Spice), Robbie Williams, Eminem, King of Pop Michael Jackson, Elton John, Madonna, George Michael, Pop Idol star Gareth Gates, and Groucho Marx (of the Marx Brothers), and encourage them to rebel against Gaghan for their own free will.

Jo O'Meara was suffering from intense back pains at the time,[3] meaning she was unable to be fully active during film, with several running shots of her having to be performed by a body double.

The film was released throughout the United Kingdom on 11 April 2003, after receiving its world premiere in London's Leicester Square.