Smartwatches offer little insight into stress levels, researchers find

Academic study suggests devices cannot differentiate between someone being overworked and being excited

The more James Gunn’s Superman is a hit, the more the right will want its own Dean Cain of steel

The star of 90s TV series Lois & Clark and wannabe Ice agent has expressed his horror at Gunn’s ‘woke’ hero. Is there a market for Superman: Border Patrol?

The Birthday Party review – Willem Dafoe is the life and soul as menacing Onassis-alike

A charismatic Dafoe commands the screen as a Greek alpha-patriarch, throwing a claustrophobic celebration for his second favourite child

South Korea postpones decision to let Google Maps work properly – again

Country is one of only a handful – alongside China and North Korea – where service fails to function as it should

‘1 Progressive vs 20 Far-Right Conservatives’ – Mehdi Hasan on why he went on Surrounded

The two-hour debate propelled Jubilee Media into the mainstream and has been viewed 10m times, but some worry about the embrace of rage-fuelled content

OpenAI unveils ChatGPT-5 and its hyped ‘PhD level’ intelligence struggled with basic spelling and geography

Some users on social media found the model making basic errors. The chatbot repeatedly claimed there were three Bs in ‘blueberry’

Becoming Led Zeppelin to The Pickup: the seven best films to watch on TV this week

An extraordinary slice of rock history in documentary form – plus Eddie Murphy’s new goofball heist flick

Star of Rebel Wilson’s directorial debut threatens legal action over ‘false and seriously defamatory’ Instagram claims

Concerns notice issued to Wilson by lawyers for Charlotte MacInnes joins disputes playing out globally over Pitch Perfect actor’s film, The Deb

Eight Postcards from Utopia review – found-footage fever dream of post-Ceauşescu Romania

Diverting mosaic of moments from 1990s TV ads, frantically flogging everything from sausages to laxatives, shows Romania’s newfound passion for capitalism

When a journalist uses AI to interview a dead child, isn’t it time to ask what the boundaries should be?

The virtual world can bring a kind of friendship and a kind of connection, even to the grieving. But it can also facilitate exploitation of very human needs, says Guardian columnist Gaby Hinsliff

‘Nobody believes in the future any more’: Adam Curtis and Ari Aster on how to wake up from the post-truth nightmare

Paranoia is exploited to control us. Movies are groomed to flatter us. And trauma has been twisted to make us blame ourselves. How can we make sense of our lives? The two film-makers try to navigate the chaos

Pretty bloomin’ what? The Great Barrier Reef is a picture of health, The Australian assures us

The News Corp broadsheet puts a Pollyannish spin on study that found a record decline in world’s largest coral reef. Plus: Grok goes woke

Trump signs order to allow crypto and real estate investments in retirement plans

Experts say allowing alternative assets like cryptocurrency in 401(k) portfolios carries a high degree of risk

I spoke to the AI avatar of a Leeds MP. How did it cope with my Yorkshire accent?

Leeds MP Mark Sewards has launched a digital assistant, but the results of my chat show MPs’ aides have nowt to worry about

Trump calls for resignation of Intel chief a day after 100% chip tariff threat

Intel share price drops after US president accuses Lip-Bu Tan of links to Chinese Communist party