Hugh Jackman, who plays the title character in X-Men Origins: Wolverine, told reporters in Sydney on Wednesday that he was "heartbroken" the movie was leaked on the Internet a month before its official release, the Reuters news service reported.
Speaking at the start of a world tour to promote Wolverine, Jackman unveiled 20 minutes of footage on Cockatoo Island in the middle of Sydney Harbour, where some of the film was shot.
"Jumped from chopper, arrived to work via flying fox and [apologized] to AUS [Australian] media for Opera House slip up," Jackman wrote on the social networking service Twitter.
The Sydney-born actor was referring to a message, or tweet, sent out on his new Twitter account on Monday in which he mistakenly called the Sydney Opera House the Opera Center.
Jackman, who not only stars in the movie but also produced it via his company Seed Productions, said he was upset for everyone involved in the movie that an unfinished version was posted online last week, almost a month before its launch.
"It's a serious crime and there's no doubt it's very disappointing—I was heartbroken by it," Jackman told a news conference widely reported by the Australian media. "Obviously people are seeing an unfinished film. It's like a Ferrari without a paint job."
Jackman added: "The FBI are onto it, and they're taking it very, very seriously."
X-Men Origins: Wolverine opens to the public in Australia on April 30 and in the United States on May 1.