Los Angeles – Beyoncé's star will have to wait until her first baby is born.

The star was due to start work on Clint Eastwood's A Star is Born
in February 2012, but after her surprise pregnancy announcement at the
MTV Video Music Awards on Sunday, filming could be delayed, according to
Deadline.

Warner
Bros are still in search for a male lead after Leonardo DiCaprio
declined on the offer to star in the remake. Director Eastwood was
unable to persuade the Inception star
or to join the movie about an aspiring singer who falls for an older
rock star while they were shooting the J Edgar biopic together.

'Nervous'

Will Smith, Christian Bale, Robert Downey Jr and Jon Hamm have all been linked to the role.

Beyoncé,
who is expecting her first child with husband Jay-Z, said in an
interview that she is looking forward to working on the project.

"I
met with Clint and I was so nervous and I know that it is the biggest
opportunity of my life. I will work as hard as I can," she said.
"Because I can't wait. And I am so happy that he trusts me and I am in
good hands and I am so fortunate."

No announcement has yet been made about her due date.