Box office
The film was released in 115 countries. Its worldwide gross eventually reached $849 million—making it the second-highest-grossing film of 2005, behind Harry Potter and the Goblet of Fire. The film earned an estimated $16.91 million from 2,900 midnight screenings in North America upon its release. In total, it earned a record $50 million on its opening day, marking the record for the highest opening-day gross on a Thursday. It was surpassed the following year by Pirates of the Caribbean: Dead Man's Chest, which earned $55.5 million on its opening day. Revenge of the Sith also set the record for having the highest worldwide opening weekend with $254 million, combined with $304 million from its four-day weekend. It would go on to hold this record for two years until Spider-Man 3 took it in 2007.
With only the May 19 earnings, the film broke four box office records: midnight screenings gross (previously held by The Lord of the Rings: The Return of the King, $8 million), opening day gross (Spider-Man 2, with $40.4 million), single day gross (Shrek 2 with $44.8 million) and Thursday gross (The Matrix Reloaded with $37.5 million). Its single day and opening day gross records were later surpassed by Pirates of the Caribbean: Dead Man's Chest on July 7, 2006, when that movie grossed $55.5 million on its opening day, and its midnight screening gross was broken by The Dark Knight on July 18, 2008, with $18.5 million. Overall, Revenge of the Sith would go on to generate a total of $108.4 million during its three-day opening weekend, making it the second-highest of all time, after Spider-Man. It held the record for having the biggest opening weekend for any 20th Century Fox film for a decade until it was taken by Deadpool in 2016. The year prior, Minions had already surpassed Revenge of the Sith for having the largest opening weekend for a prequel.
According to box office analysis sites, the film set American records for highest gross in a given number of days for each of its first 12 days of release except for the seventh and eighth, where the record is narrowly held by Spider-Man 2. Within three days, Revenge of the Sith surpassed Spider-Man for having the highest three-day gross of any film, scoring a total of $124.7 million. Upon opening, the film would reach the number one spot at the box office, beating out Monster-in-Law and Kicking & Screaming. On its fifth day, it became the highest-grossing film of 2005, replacing Hitch ($177.6 million). The film earned $158.5 million in its first four-day period, surpassing the previous four-day record held by The Matrix Reloaded ($134.3 million), and joining the latter film, Spider-Man, and Harry Potter and the Goblet of Fire as one of the only four films to make $100 million in their first three days. In eight days, it reached the $200 million mark (a record tied with Spider-Man 2) and by its 17th day, the film had passed $300 million (surpassing the record of 18 days of Shrek 2). It was eventually the third-fastest film (after Shrek 2 and Spider-Man) to reach $350 million. Revenge of the Sith earned a total of $55.2 million during its second weekend, making it the fourth-highest-grossing second weekend of all time, behind Harry Potter and the Sorcerer's Stone, Spider-Man and Shrek 2. The film then earned $70 million in just four days, becoming the seventh-highest Memorial Day weekend gross of any film, trailing only behind Shrek 2, The Lost World: Jurassic Park, The Day After Tomorrow, Bruce Almighty, Pearl Harbor and Mission: Impossible 2. It topped the domestic box office for a total of two consecutive weekends before being overtaken by Madagascar and The Longest Yard (which were in their second weekend) in its third weekend, but it still outgrossed Cinderella Man, The Sisterhood of the Traveling Pants and Lords of Dogtown.
The film wrapped up its run in American theaters on October 20, 2005, finishing with a total gross of $380,270,577. It ranks 29th in all-time domestic grosses and is the highest-grossing U.S. of 2005, out-grossing second-place The Chronicles of Narnia: The Lion, the Witch and the Wardrobe by nearly $90 million. The film sold an estimated 59,324,600 tickets in the US.
International grosses that exceeded $460 million include those Australia ($27.2 million), France and Algeria ($56.9 million), Germany ($47.3 million), Italy ($11.3 million), Japan ($82.7 million), Mexico ($15.3 million), South Korea ($10.3 million), Spain ($23.8 million), and the United Kingdom and Ireland ($72.8 million).