Spectre, the criminal organization from Ian Fleming's James Bond novels, was largely absent from the Bond films for many years due to legal issues involving the rights to the character and the name. After the rights were resolved, Spectre returned in "Spectre" (2015) as part of a narrative arc that connected several films, including "Skyfall." However, with the conclusion of Daniel Craig's tenure as Bond and a shift in creative direction, the franchise moved away from Spectre in "No Time to Die" (2021), focusing instead on new villains and storylines.

"Spectre," the 2015 James Bond film, was generally considered a commercial success, grossing over $880 million worldwide against a production budget of around $245 million. While it performed well at the box office, critical reception was mixed, with some praising its visuals and performances, while others felt it was weaker compared to its predecessor, "Skyfall." Ultimately, it can be categorized as a hit due to its strong box office performance, despite the mixed reviews.

Yes, "Spectre" is a sequel to "Skyfall." Released in 2015, "Spectre" continues the story of James Bond, played by Daniel Craig, following the events of "Skyfall" (2012). While it features a new overarching narrative involving the criminal organization S.P.E.C.T.R.E., it also ties back to the themes and character developments introduced in "Skyfall," particularly Bond's personal connections and the implications of his past. The film explores the impact of these elements on Bond's mission and relationships.

"Spectre," the 24th James Bond film, is worth watching if you enjoy action-packed spy thrillers with a blend of classic Bond elements and modern storytelling. Directed by Sam Mendes, it features stunning visuals, a compelling performance by Daniel Craig as Bond, and a strong supporting cast, including Christoph Waltz as the villain. The film explores Bond's past and introduces the sinister organization Spectre. While it received mixed reviews for pacing and plot, it offers impressive action sequences and a stylish aesthetic, making it appealing for Bond fans.