The former Pan Am actress, who is engaged to marry fiancé James Heerdegen has recently revealed to Life & Style magazine her plans for the wedding so far.
"We have the venue, we have a we have a caterer and I have someone working on a dress,” Christina said.
The talented star, 32, who landed her first big role in the Addams Family at just 11, also announced that should be helping the designer create the one-of-a-kind wedding gown.
"It's fun," she said of the design process, adding "We are still in the initial sketching stages."
Although Christina has not yet revealed a name, she has said that the designer will be a close "friend of mine".
Supermodel Kate Moss also teamed up with friend and designer John Galliano when helping to create the bespoke vintage number she wore when she tied the knot with husband, Jamie Hince.
Other celebrities who have taken their hand to adding a personal touch to their wedding day attire include Anne Hathaway who wore custom-made Valentino and Blake Lively who chose Marchesa.
With regards to her fiancé, the Bel Ami actress has also revealed that she's taking on most of the planning herself.
“[Jimmy] is not really into fashion that much,” Christine said. “He’s not even going to help plan the wedding. He’s working. He’s always working.”
The happy couple met on the set of American television series Pan Am where James was working as a dolly grip.
This will be the first trip down the ailse for Christina who revealed the engagement in February of this year.
The star has also told US Weekly that she'll be having a "moderately sized" wedding, but did not specify a date.
"I'm excited to be with all my friends and family," she explained, "and just have a lovely night."