1. Pluto TV: Pluto TV is a free streaming service that offers a variety of movies and TV shows. The Cheetah Girls: One World is available to stream on Pluto TV.
2. Amazon Prime Video: Amazon Prime Video offers a free trial period for new users. During this trial period, you can watch the Cheetah Girls: One World for free.
3. YouTube: Some users have uploaded the Cheetah Girls: One World to YouTube. You can search for the movie on YouTube and watch it for free.
It's important to note that not all of these methods are legal. Streaming movies and TV shows without permission from the copyright holder is considered piracy. If you are caught pirating content, you may face legal consequences.