Drew Barrymore showed off her major baby bump in two different tight-fitting dresses at CinemaCon on Thursday, March 27 -- see the pictures Credit: Michael Buckner/Getty Images for CinemaCon

Sneaky switch up! Drew Barrymore looked stunning as she showed off her major baby bump while attending CinemaCon in Las Vegas on Thursday, March 27. The pregnant actress changed her look up twice during the evening, wearing chic tight-fitting ensembles on the red carpet. Click here to see more photos of pregnant Drew.

Barrymore, 38, first flaunted her growing belly in a canary yellow knee-length Ludwig Boutique vintage dress at the event. She accessorized with nude Dana Davis heels. The actress was accompanied by her former Wedding Singer costar and longtime friend Adam Sandler, as they were honored with the Male and Female Star of the Year award.

After a quick change, Barrymore then returned in a gorgeous floor-length Marc Jacobs dress with a floral print and beaded accents. She simply glowed while hugging and laughing with Sandler, 47, for the cameras.

Barrymore and husband Will Kopelman, 36, are set to welcome their second baby girl into the world any day now. Back in January, the Blended star said she's gained a lot more weight this time around compared to her pregnancy with daughter Olive, now 17 months.

"Oh God. I mean, I just eat everything I want, which isn't healthy. I'm bigger this time than my first time," she said during an appearance on The Ellen DeGeneres Show on Jan. 13. "My doctor the other day was like, 'Yeah, so I think maybe pull back a little bit.' I was like, 'Really?'"