How many endings did I Am Legend have?

The movie I Am Legend had multiple endings. Here are some of them: At the beginning of the movie, the protagonist, Jack Sully, was given a mission: to find the lost civilization, the Beta civilization, and bring back their culture and technology. During his journey, he encountered many dangers and challenges, and made many friends, including Emily, a female scientist, and Adam, a mechanic. At the climax of the story, Jack successfully found the ruins of the Beta civilization but was discovered by a group of Beta people. In order to protect these civilizations, Jack and Emily decided to fight against the Beta people, but in the end, they successfully saved these civilizations and brought them home. At the end of the movie, Jack and Emily returned to Earth. Jack became a legend and was worshipped by many people. Emily became a guardian of the Beta culture and continued to inherit and develop the Beta civilization. There was also an ending in the movie. Jack and Emily returned to Earth but found that the ruins of the Beta civilization had been destroyed and all the Beta people had disappeared. They felt lost and sad, but they knew that their mission had been completed and that they should move on to protect humans and the earth.