In this animated adventure, the beloved Mystery Inc. gang finds themselves in the heart of Hollywood, where they must unravel a spooky mystery at an old movie studio. As they navigate through the haunted sets, they encounter classic monsters and uncover secrets that threaten the future of the studio. The film features the voice talents of Frank Welker, Grey Griffin, and Matthew Lillard, bringing the iconic characters to life in a fun and engaging way. Directed by Rick Morales, this family-friendly film combines humor and mystery, making it an enjoyable watch for fans of all ages. For those interested, it can be viewed for free on 123Movies / Movies123.