Movies can use the same soundtrack from other movies under certain circumstances. In general, the use of music in movies is governed by copyright laws. The copyright owner has the exclusive right to control the use of their work, including the right to reproduce, distribute, and publicly perform their music. Therefore, the use of music from another movie without permission or license from the copyright owner would be illegal.
However, there are some exceptions to this rule. One of these exceptions is called "fair use." Fair use allows the use of copyrighted material without permission for purposes such as criticism, commentary, news reporting, teaching, scholarship, or research. Whether the use of a soundtrack from another movie falls under fair use would depend on the specific facts and circumstances of each case.
Another exception is the use of pre-existing music that has been licensed for use in movies. Many movies use popular songs or well-known instrumental pieces as part of their soundtracks. In these cases, the movie producers would need to obtain a license from the copyright owner of the music in order to use it in their movie. The license would typically specify the terms and conditions of use, including the duration, territory, and scope of the license, as well as the amount of royalties or other fees that the movie producers would need to pay to the copyright owner.
In some cases, movies may also use music from other movies with the permission of the copyright owner. This could happen, for example, if the same production company owns the rights to both movies, or if the copyright owner of the music agrees to license it for use in another movie.
It is worth noting that the use of a soundtrack from another movie may have implications beyond copyright law. For example, it could affect the artistic integrity of the movie or its reception by audiences. It could also raise questions about the originality or creativity of the movie if it relies heavily on pre-existing music. Therefore, even if the use of a soundtrack from another movie is legal, it may not always be the best choice for the movie itself.
In conclusion, movies can use the same soundtrack from other movies under certain circumstances, such as fair use, licensed use, or with permission from the copyright owner. However, the use of pre-existing music may have implications beyond legal issues, and it is up to the movie producers to weigh these factors when deciding whether to use a particular soundtrack.