Pregnant actress Minnie Driver has dismissed the idea of a rush wedding to her unborn baby’s father, because a marriage certificate is "not important" to her.

The Good Will Hunting star, 38, revealed she was pregnant with her first child during a March 13th appearance on U.S. TV’s The Tonight Show with Jay Leno.

However, Driver has so far refused to reveal the identity of the unborn tot’s daddy, and on Thursday was forced to deny Californian musician Craig Zolezzi was the child’s other parent.

But, regardless of who the father is, she has warned fans not to expect a quickie wedding.

Asked whether she will marry the baby’s daddy, she says, "Definitely not in the near future. It’s not important to me. I don’t think a piece of paper lends itself to the idea of being a good parent and I want to be a good parent."