The moment everyone was waiting for . . .

The 21-year-old – who plays Hermione Granger – said she and Grint decided it had to be special after the years of tension-building. “I think we did all right,” she concluded, despite the pressure, in an interview with ITV1’s Daybreak.

Watson said: “I think that’s like the most anticipated kiss in history. We’ve been building tension to this moment for like eight movies.”

The actress said both she and Grint – who has starred as Ron Weasley in the films since they began – felt the pressure.

“We were like, ‘People have been really waiting for this moment, and we’ve really got to pull this off.’ And I was like ‘yes, I know. What are we going to do?’”

Harry Potter and the Deathly Hallows Part 2 – the last of eight films will premiere in London tomorrow.

Watson said she felt incredibly emotional when filming finally ended on the films with which she has been involved for half her life.

“I cried, cried, cried, cried, cried – it was really emotional and overwhelming.”