The Harry Potter star, 33, said having a child would make him ‘a bit more selective’ with future projects’.

The 33-year-old has been in a relationship with fellow actor Erin Darke for more than a decade.

The couple are reported to have met on the set of 2013 film Kill Your Darlings.

The actor said Halloween had ‘never been much of a thing for me’ but it was ‘a lovely thing’ fans wanted to emulate the character.