The Twilight star plays vampire Edward Cullen in the franchise. He said that after tying the knot and having a baby with Bella - played by real-life girlfriend Kristen Stewart - in Breaking Dawn: Part 1, there isn't much else for the couple to do.
'That's what's going to happen,' he told E! when asked about divorce. 'That's the only option.'
And while Kristen admitted that it could happen, she refused to contemplate it.
'I think it's technically possible. But I can't really answer that question. It's too sad.'