DAME Emma Thompson was accused of hypocrisy last night after jetting 5,400-miles to take part in London’s eco-protest.

The Oscar-winning actress flew back to London from LA to support the eco-warriors plotting to take down Heathrow today.

5 Emma Thompson arriving at Heathrow on Wednesday before joining Extinction Rebellion's protest - the group plans to disrupt the airport's flights today, sparking anger from families with Easter weekend plans Credit: BackGrid

5 The actor made the transatlantic flight to join the eco-protest which is now its fourth day

5 Cops confirmed that over 500 activists have been arrested so far since the demonstrations began on Monday Credit: Associated Press

The Extinction Rebellion group are calling for flights only to be used in emergencies.

It is estimated that a single 5,456-mile transatlantic flight between Los Angeles and London Heathrow would run up a three tonne carbon footprint.

Thompson posted a video on social media to pledge her support to the group.

She donned denim dungarees and a green sticker of the Extinction Rebellion symbol in front of an inflatable plastic elephant.

The Bafta-award winning actress explained that she would have joined the protest earlier but she had been busy celebrating her 60th birthday.

She added: "I am so proud and thrilled to be part of Extinction Rebellion, a new movement that has come up behind all the old ones that I’ve been part of since I was 16 years old.

"A movement that’s telling it like it is and saying to government ‘look, there’s no more time. You can’t lie and you can’t stall any longer'."

Many protesters involved in the march have demanded that the Government limit how many times individuals can fly each year.

A spokesperson for Dame Emma told the MailOnline: "She had to fly home at any rate, it was just earlier than she thought she could have. At the moment, that is our only available and practical means of trans-global travel."

MOST READ IN NEWS EAT IN OR TAKE OUT? Chaos & confusion over whether cafes will HAVE to offer table service CLUB FURY Footballer who beat girlfriend & forced her to eat paint signs to new club DOG BITE DEATH Dog owner, 35, mauled to death by family pet while having an epileptic fit Latest COP CHASE TRAGEDY 2 men dead and 2 women and man injured in police chase in Manchester Exclusive RISHI DISHES HELP Chancellor to extend furlough for staff worst hit as Covid threat returns CREEPY CRAWLERS Dozens of horrifying 3ft-long robber crabs invade family's campsite BBQ

Ringleader of the movement Robin Boardman-Pattison declared during a television interview this week that flying "should only be used in emergencies" despite appearing to travel extensively.

An Extinction Rebellion spokesman said: “If Emma Thompson wants to come and help out, that’s great, she’s using her platform which is incredibly valuable to anyone.

"If she has to fly around the world like a climate lawyer might have to fly around the world, it seems counter-productive in the short term but we are looking at the bigger picture."

5 Protesters in Parliament Square on the fourth night of disruption in London Credit: Press Association

5 The activists also shutdown Oxford Circus, causing more travel chaos Credit: EPA

We pay for your stories! Do you have a story for The Sun Online news team? Email us at tips@the-sun.co.uk or call 0207 782 4368. You can WhatsApp us on 07810 791 502. We pay for videos too. Click here to upload yours.