'Inglourious Basterds' prequel 'half-written'

Quentin Tarantino has admitted that a prequel to Inglourious Basterds is already half-written.

The director made the admission during an interview with the New York Times, according to Ace Showbiz.

He said: "I have a half-written prequel ready to go if this movie's a smash."

The upcoming film stars Brad Pitt who leads a band of US soldiers on a revenge mission against the Nazis.

The proposed prequel could deal with an idea shelved for the current movie, which would involve an African-American squad trapped behind enemy lines.

Tarantino also mentioned the possibility of a storyline in which the titular Basterds do battle with the Ku Klux Klan during the 1950s.

Inglourious Basterds opened at the Cannes Film Festival on April 23, and will be released in the US and UK on August 21.