A video supporting the campaign of US Democratic candidate Hillary Clinton featuring clips from Jack Nicholson's films has become a hit online.
According to the video-sharing website YouTube, it has been viewed more than 1.2 million times since its release.
The video, which features excerpts from Batman, The Shining, Chinatown and A Few Good Men, ends with Nicholson saying he "approved this message".
It has since spawned a parody endorsing Mrs Clinton's rival Barack Obama.
Nicholson is one of several celebrities who have come out in favour of Mrs Clinton. Others include director Steven Spielberg, singer Barbra Streisand and actress Eva Longoria Parker.
Mr Obama, meanwhile, can count on the support of talk show star Oprah Winfrey, Robert De Niro and George Clooney.
Sylvester Stallone is among the stars who have put their weight behind the Republican front-runner John McCain.
Nicholson's official video uses a clip from his 1989 film Batman to suggest Mrs Clinton is the more capable of the two main Democratic candidates.
"Hubba hubba hubba, money, money money, who do you trust?" he asks in his guise as the Joker.
Later, in an excerpt from The Shining, he suggests "things could be a whole lot better".
The parody version, however, uses clips from the same film showing him looking depressed and irate.
"Looks like you're a bit disappointed in [Clinton]," states a caption before exhorting him to "vote Obama".