A man who stabbed his parents to death after a row about the care of his dog has been jailed for life.
Sergey Koudryavtsev, 48, killed his parents at their home in Kensington, central London, in May.
The former Lord of the Rings visual effects technician previously admitted murdering Vladimir Koudriavtsev and Tatiana Koudriavtseva.
The judge at the Old Bailey said he should service a minimum term of 26 years.
Former university lecturer Mrs Koudriavtseva and her husband had been dead for three days when they were found by police on 20 May at Adair Tower, following a confession by the defendant.
Koudryavtsev had argued with his parents over the care of his Neapolitan mastiff Enzo, with whom he was said to be “obsessed”.
The day before the killings, Mrs Koudriavtseva, 68, told a friend her son had become abusive during the two years he had lived with them following the breakdown of his marriage.
The court heard Koudryavtsev, of no fixed address, was born in Russia and had a successful career in movies after completing a maths degree.
His credits included Blade, Resident Evil, Avatar, District 9 and Rise Of The Planet Of The Apes.
He admitted to “fantasising” about killing his parents for up to four months, as they did not appreciate that dogs were “equal to humans”.
The court heard Koudryavtsev grabbed his mother by the head and stabbed her in the neck repeatedly with a hunting knife.
He then walked into the bedroom and stabbed his father twice.
Koudryavtsev admitted that fatally stabbing his parents “felt natural”.
Afterwards he said he panicked about Enzo’s future and set about finding him a good home, which he refused to reveal to police.
Judge Nicholas Hilliard said Koudryavtsev’s parents’ lives “must have been very difficult indeed” in their final weeks.
Det Con Insp Rob Pack, from the Met Police, said: “Koudryavtsev’s explanation for his acts of parricide is hard to comprehend and I am thankful such incidents are rare.”