It seems to be the season of the celebrity split, with first news that Michelle Williams and Jason Segel have gone their separate ways, and now Rachel McAdams and Michael Sheen also splitting up.

It’s believed that the constant travel has caused the two to break up, though in a previous interview with Stella Magazine she’d said: "Michael and I never spend more than three weeks apart - we rack up a lot of air miles - but you have to be quite adaptable in this business whether you are in a relationship or not.” In fact, it seems quite a shame that this one has gone down the plughole, with the pair seemingly pretty happy. In the same interview, McAdams had said "Michael and I didn't get together while we were filming Midnight in Paris, which I feel strongly about not doing when I'm working. We became quite good friends, which I think is a great way to start. I felt very blessed to have made a Woody Allen film in Paris together."

Michael Sheen and Rachel McAdams in 2012

Michael Sheen and Rachel McAdams have split - but is it just temporary?

With the surprising split, E! Online has delved a little deeper and a source of theirs believes that the split may, in fact, only be temporary. "It's likely not permanent. Temporary hiccup," they said to the website, adding that the duo will probably get back together. It’ll be interesting to see if they do, because there wasn’t much publicly that suggested this split was on the cards.