BMX Bandits (released as Short Wave in the United States) is a 1983 Australian crime comedy action film directed by Brian Trenchard-Smith and starring Nicole Kidman.

In the film, a gang is given orders to perform payroll robbery. The walkie-talkies which it intends to use are stolen by local kids, and the gang decides to chase the thieves.

REAR COVER

Get ready to take a wild BMX ride with three hilarious teens including Nicole Kidman) who've fallen into the middle of a mad-cap crime! You'll be hanging on to the edge of your seat as the tricky teenage trio tears through the streets - frantically escaping the crooks and the cops in crazy stunt-filled chases.

Unbelievable excitement keeps you revved up from begining to end!

PRODUCTION

The film was originally going to be written and directed by Russell Hagg and was going to be about nine-year-old characters. He was unable to raise finance. The project passed to producer Tom Broadbridge who hired Hagg's frequent collaborator Patrick Edgeworth to rewrite the script and make it about teenagers.

Brian Trenchard-Smith was hired after the producers had been impressed by his handling of action in Turkey Shoot. He says the script was originally set in Melbourne but he persuaded them to re-set it in Sydney to take advantage of that city's locations. He set it on the northern beaches and wrote action sequences based on "my concept for the BMX action being putting BMX bikes where BMX bikes aren’t meant to be.” The movie was shot over 41 days, a longer than normal shoot because of the labour restrictions caused by the fact many of the cast were under 16. Trenchard-Smith:

I wanted to capture the spirit of the Ealing comedies and British films of the '50s and '60s that were clearly aimed at children and delivered action and fun in a largely cartoonish way. If you look at the basic premise of the plot, the crooks clearly want to or intend to kill the children at some point, so how do you disguise that and make that palatable to an audience of kids and parents? You make the crooks buffoonish, the gang that couldn’t shoot straight, so that takes the curse off the underlying purpose.

Nicole Kidman sprained her ankle during filming. No female stunt double that looked like her could be found, so her bike stunts were performed by an 18-year-old man in a wig.

DETAILED PLOT

After a successful Sydney bank robbery, with the robbers wearing pig masks and wielding shotguns, the man in charge, "The Boss", plans a further and larger payroll robbery for two days later, worth at least $1.5 million. He hopes that he can trust his less-than-competent gang, headed by Whitey and Moustache, to do the job properly. Anyone who fails will answer to him.

Two young BMX experts, P. J. and Goose, meet Judy, who is working as a trolley collector at the Warringah Mall during the school holidays to be able to buy her own BMX bike, and accidentally get Judy fired from her job when they crash into trolleys pushed away by the local "Creep". The three go out in Goose's dad's runabout on the harbour searching for cockles to sell to fix their own crashed bikes, as well as getting Judy her own and stumble onto and steal a box of police-band walkie-talkies that the bank robbers were hoping to use to monitor on police traffic. After stealing the box, the kids pass Whitey and Moustache who are on their way in their high-powered motorboat to pick it up.

Judy, P.J., and Goose sell the walkie-talkies to other kids in the area. The Bayside Police can hear the kids using the walkie-talkies. Judy, P.J., and Goose are also unaware that the robbers know who stole the box. After they are spotted and chased late at night through a cemetery by Whitey and Moustache wearing monster masks (going formal, according to Whitey), they manage to escape. The next day, P.J. and Goose pick up their newly repaired bikes while Judy buys her bike. Judy is caught the next day by Whitey and Moustache while getting a second walkie-talkie for The Creep but escapes with the help of P.J. and Goose. The goons chase the Bandits in a cartoonish chase across various sites around Sydney, including a memorable escape down the Manly Waterworks water slides, complete with BMX bikes.

The trio are finally arrested but escape police custody and, with the help of the local kids, launch their plan to foil the planned payroll robbery. Using the walkie-talkies, the Bandits pinpoint the meeting place for the robbers, then proceed to ambush and apprehend the robbers. The Boss, Whitey, and Moustache escape in a removal truck with Judy as a hostage, with P.J. and Goose taking chase. They cause the truck to crash, with police soon arriving to arrest The Boss, Whitey and Moustache.

The police build a BMX track as thanks for the capture. In its opening meeting, the BMX Bandits sweep the main awards.