The film director Roman Polanski is suing the Academy of Motion Pictures, which organises the Oscars, after it expelled him over a past sexual offence.

The director of the film 'Chinatown' was ejected from the Academy, along with Bill Cosby, in 2018.

Polanski fled the United States after pleading guilty to the statutory rape of a 13 year-old girl.

A lawyer for the long-time fugitive filmmaker said that he was expelled "without warning" and with no chance to respond.

Polanski's lawyer filed a writ at the Los Angeles Superior Court, and will pursue legal action against the film institution on grounds that the famed director's expulsion was unfair.

However, the Academy responded in a statement that its removal of Polanski from its ranks was "fair and reasonable" and it will not reverse the decision.

Polanski, who has been on the run since 1978, was told of his ejection from the Academy in a letter citing the need to respect "human dignity".

The Director's lawyer, Harland Braun, claims in his writ that: "The Academy failed to comply with its own rules, polices, and regulations" when it ejected Polanski.

Mr Braun told the Press Association: "There was not even any notice of why, after 40 years, on the same day as Cosby. Give me a break."