Man vs Baby has claimed the top position on Netflix's most-watched TV series chart and maintained its dominance. The four-part festive comedy featuresMr Bean legend Rowan Atkinson returning as Trevor Bingley, his character from Man vs Bee.

In this latest instalment, Trevor transitions from house-sitting to working as a school caretaker, though his career takes an unexpected turn following an intriguing phone call from his previous employer. When presented with an unmissable opportunity in London, Trevor is eager to accept.

His plans are disrupted, however, when aninfant is left behind following the school's nativity play, leaving Trevor with no option but to care for the baby. The pair embark on a journey to London, where Trevor faces numerous challenges whilst devising creative solutions to tend to the child.

According to viewers, the baby has undoubtedly become the breakout star of the series, prompting curiosity about whether a real infant was used or if AI technology played a role. At a Q&A session held after a special screening of the programme, Atkinson revealed to Reach and other media outlets some behind-the-scenes filming details.

He explained: "We should emphasise of course that the baby was twins, you always choose twins so if one gets grizzly you can bring the other one in. You can only have a baby on set for 45 minutes [a total of two hours a day] and a shoot day is eight or 10 hours so there are so many hours that you can't actually continue filming that scene."

"You have got to film a different scene, or a different shot, just looking the other way. The scheduling is tricky with babies. So we have identical twins, the hero babies, and then we had twin crawling babies because the hero babies couldn't crawl.

"So that's where the CGI comes in, when you implant the face of the hero baby into the crawling baby."

He continued, explaining that whilst the slapstick humour wasn't particularly demanding, his presence in every scene meant "you don't really get days off once you start shooting, so that wasn't easy".

"But we managed it, and I think the main challenge was just keeping the story and the logic of it in your head when you are dealing with a co-star who, you know, there's not much chat between takes. You have just got to go with the flow, but I was OK with the babies, keeping them happy."

The star revealed how they'd selected "calm" babies, though this presented its own difficulties as when requiring the infants to appear cheerful or playful, they simply "sit there and stare at you".

Director David Kerr added: "They remained unmoved at some points", revealing there were "some hilarious outtakes of Rowan" attempting to elicit laughter from the babies. Rowan elaborated in a separate interview: "In the end, you rely on their parents and carers and all the support staff who are there to ensure that they're looked after, and all of those people were great. You may think we whittled a rod for our own back, and we certainly did, but because of all the tremendous support on the production with the parents and carers of the baby, I think we pulled it off."

He admitted the baby had become a "scene-stealer" in the show, stating: "The babies are scene-stealers, that's their very nature. It's that strange thing when you're watching a baby, because you know that they're not acting, they're just being themselves and reacting to the situation surrounding them.

"As such, they're completely unpredictable, but also completely engaging, because you know they're giving an inherent truth that you're not getting from an adult performer."

Man vs Baby is on Netflix