Nya, I saw this movie on television in the late 90s. It was 2D animation. Surely it was a film of 80s or 90s. Maybe it was American or Canadian. It was starring by a girl who lived in Australia, and a dog named Laika. I dont know if this Laika was the original Laika who travelled to the space in the 50s or the name is in honor of the real astronaut dog. I think the girl spoke at the beginning of the film with the australian animals, such as kangaroos and koalas. The girl and her animal friends were trying to save the dog to prevent the scientists sent she onto the space, but the plan went wrong and the girl was trapped inside the rocket with the dog and his friends saw the rocket taking off helplessly. The rocket had landed on another planet inhabited by extremely fat aliens, egg-shaped. Maybe the aliens were balloons. During the rest of the movie the girl and the dog tried to help the prince of aliens and find a way to return to the earth, while an evil alien who hates them try to end the life of the prince to rule the alien kingdom.