The 37-year-old star, who is expecting her first child with art consultant fiance Kopelman, was photographed trying on white veils during a shopping trip in New York City, reported Aceshowbiz.
Barrymore started trying the veil with her hair down before testing out the look of the headpiece with her tresses in an updo.
The actress was accompanied by a group of women, one of whom is said to be her future mother-in-law Coco Kopleman, as she visited bridal shop Suzanne Couture Millinery, which is located on the Upper East Side of Manhattan.
While Barrymore has not officially shared details of her upcoming nuptials to Kopelman, words have swirled around that her wedding is set to take place at her estate in Montecito, California sometime in June.
It is also alleged that Barrymore is likely to wear a Chanel gown and the ceremony will be conducted by a longtime rabbi of the Kopelman's family.