The first film, getting its in-universe chronological number as Episode IV after 1981 re-release, was followed by two successful sequels, Episode V: The Empire Strikes Back (1980) and Episode VI: Return of the Jedi (1983); these three films constitute the original Star Wars trilogy. A prequel trilogy of Episode I: The Phantom Menace (1999), Episode II: Attack of the Clones (2002) and Episode III: Revenge of the Sith (2005), was met with mixed reactions from critics and fans. Finally, a concluding sequel trilogy of the nine-episode saga began with Episode VII: The Force Awakens (2015), continued with Episode VIII: The Last Jedi (2017) and is aimed to end with the final 2019 movie. The first eight films were nominated for Academy Awards (with wins going to the first two released) and were commercially successful, with a combined box office revenue of over US$8. 5 billion. Together with the theatrical spin-off films The Clone Wars (2008), Rogue One (2016), and Solo: A Star Wars Story (2018), Star Wars is the second-highest-grossing film series of all time.