* The basic plot is the same: Both the movie and the musical tell the story of two rival gangs, the Jets and the Sharks, who fight for control of the streets of New York City. The story is set in the 1950s, and it explores themes of love, loss, and racial prejudice.
* The main characters are the same: The movie and the musical both feature the same main characters, including Tony, Maria, Anita, and Bernardo. Tony is a former member of the Jets who falls in love with Maria, a Puerto Rican girl who is the sister of Bernardo, the leader of the Sharks. Anita is Bernardo's girlfriend, and she is also a close friend of Maria.
* The songs are the same: The movie and the musical both feature the same iconic songs, including "Maria," "Tonight," and "America." The songs are some of the most memorable and beloved in musical theater history, and they help to tell the story of West Side Story in a powerful and moving way.
* The movie is more visually stunning: The movie is able to take advantage of cinematic techniques to create some truly stunning visuals. The opening scene, in which the Jets and the Sharks dance and fight in the streets of New York City, is particularly impressive. The movie also makes use of special effects to create some memorable scenes, such as the underwater ballet sequence.
* The musical is more intimate: The musical is more focused on the characters and their relationships. It has a more intimate feel than the movie, and it allows the audience to get to know the characters more deeply. The musical also features more dialogue than the movie, which allows the characters to express their thoughts and feelings in more detail.
* The ending of the movie is different from the ending of the musical: In the movie, Tony and Maria die at the end. This is a tragic ending, but it is also a powerful and memorable one. In the musical, Tony and Maria survive, and they are able to live happily ever after. This is a more hopeful ending, but it is also less realistic.
Overall, the West Side Story movie and musical are both excellent works of art. They tell the same story in different ways, and they each have their own strengths and weaknesses. The movie is more visually stunning, while the musical is more intimate. The ending of the movie is different from the ending of the musical, but both endings are powerful and memorable in their own way.