Charlie Hunnam falls in love with his partner every time he sees her

He said: "A successful relationship requires a lot of hard work and tenacity. Morgana and I don’t do a great job of staying in contact when we’re apart, but because we’ve been together for so long, there’s a lot of trust. We go and do our thing and then we come back, show each other what we’ve learnt and fall in love again."

The 39-year-old actor also admitted to experiencing a "true existential crisis" when he was out of work.

He said: "The greatest challenge for most actors is how they face the time between jobs. I’ve had periods where I haven’t worked for two years and, after a while, I would find myself in true existential crisis."

However, things are going great for the 'Lost City of Z' star at the moment and he's been super busy - although the "intense" work has left him feeling "like a foreigner in his own life".

Speaking to The Times magazine, he added: "I've only spent about two months out of the past two years in LA. I’ve been working a lot, often doing 100 hours a week recently.

"After four months of working in quite an intense way, I return home and feel like a foreigner in my own life."