Sid and Buck are back in this third instalment of Ice Age, dubbed Dawn of the Dinosaurs, one of the most successful animated series of recent years.

When Sid tries to rescue three dinosaur eggs, he’s captured by their mother and dragged down into an underground lost world. It’s up to the rest of his dino buddies to get him back.

This theme includes wallpapers based on film posters from the release of Ice Age: Dawn of the Dinosaurs, plus character art.

You can't easily change the more involved elements of your LG Cookie's interface, but changing wallpapers is very simple. Just download the theme file, unzip it and then transfer the files to your phone via Bluetooth.

When your phone receives the file, it will ask you whether you want to save the file or use it as a wallpaper. Select 'Use as wallpaper' to tranform your LG Cookie.

If you don't want to use the wallpaper straight away, you can access the image later from within the phone to set it as your wallpaper.

Do this by selecting the image in the gallery, and tapping on the screen. A menu bar will come up on the bottom of the screen. Tap on the fourth icon along (the portrait image), and you'll get the option to set the image as a wallpaper. Tap 'Set' on the bottom of the screen and the picture will become your wallpaper.

NOTE: If you're having trouble transferring the wallpaper files from your computer to your phone or making them wallpapers, try again because the LG Cookie can be a little temperamental when reproducing images as wallpapers. Be patient!

Download this great Ice Age: Dawn of the Dinosaurs theme