Yes, "Zathura: A Space Adventure" is connected to "Jumanji." Both films are based on children's books by Chris Van Allsburg and feature a magical board game that transports players into a different world. While "Jumanji" involves a jungle setting, "Zathura" takes players on a space adventure. The films share thematic elements of adventure, sibling relationships, and the consequences of playing the game. Additionally, "Zathura" can be seen as a spiritual successor to "Jumanji," as both stories explore the idea of games bringing fantastical challenges to life.

As of now, there is no official sequel or "Zathura: Part 2" announced. "Zathura: A Space Adventure," released in 2005, is based on a children's book by Chris Van Allsburg and serves as a standalone film. While there has been interest in expanding the universe or creating sequels, no concrete plans have materialized. Fans of the movie can still enjoy the original film, which combines adventure and fantasy elements in a unique way.

"Zathura: A Space Adventure" is generally considered worth watching, especially for families and fans of adventure and fantasy films. Directed by Jon Favreau, it follows two brothers who discover a magical board game that transports their house into space, leading to thrilling challenges. The film features good performances, particularly from young actors, and is visually engaging with imaginative sequences. While it draws comparisons to "Jumanji," it has its unique charm and themes of sibling rivalry and teamwork. Overall, it's an entertaining watch for all ages.

As of October 2023, "Zathura: A Space Adventure" is not available on Netflix. However, streaming availability can change frequently, so it's a good idea to check Netflix directly or use a streaming search service to see if it has been added recently. You might also find the movie on other platforms like Amazon Prime Video, Hulu, or for rental on services like Google Play or iTunes.