Helena Bonham Carter and Tim Burton announced the happy news: the actress is pregnant the second time, giving their three-year old son, Billy Raymond a brother or sister.

The couple met during the 2001 remake of Planet of the Apes, where Burton was director and Carter was playing the role of Ari. They further worked together in "Big Fish," "Charlie and the Chocolate Factory," the animated "Corpse Bride" and the upcoming "Sweeney Todd: The Demon Barber of Fleet Street," co-starring Johnny Depp.

Carter’s spokeswoman officially announced today:  "Helena Bonham Carter and Tim Burton are very happy to be expecting their second child later this year."

Burton was very excited when his girlfriend expressed her desire to have another child: “We've got to get on with it!” The 48-year old film director enthusiastically talked about the exquisite experience of being a father after his first son was born:  "It's like an explosion of heart, love, everything - and it's extraordinary.

"It's changed everything. Everybody told me it would, and, of course, I didn't really listen, and there's no real way of describing it."

Tim Burton assisted in the delivery room and he makes innovative comparisons regarding the experience of having a baby: "It was like my own private Alien movie. I'll tell you, it was the weirdest thing I've ever seen. It was amazing."

The proud mother can be seen in theaters starring the evil witch Bellatrix Lestrange in "Harry Potter and the Order of the Phoenix," the 5th sequel adapted from J.K. Rowling's masterpiece.