Blake talks about "rare" outing with Gwen: "We really have no chance of doing anything"

Blake Shelton and Gwen Stefani made it a family affair, going out with his kids for the premiere of his new animated film "UglyDolls" on Saturday at Regal Cinemas L.A.

Terri Seymour of "Extra" said, "It's rare that Gwen and I can even go out at all, we really have no chance of doing anything." One of us works or the children are in school – it never suits us to go out – we can do it about four or five times a year, that's one of them. "

The country superstar said, "It's cool that this is a project, the kids are very excited about this movie, I'm excited for them because it's such a good message."

Smiling, he observed, "My cool points have increased with this one."

Blake plays Ox in the movie. "He's the official Uglyville Mayor," he said, "and he has a big secret … you realize he's been hiding for a long time. He did it for the right reasons. "

Joking about identifying with his doll, Blake humbly says, "He's really ugly, he has a big belly."

"UglyDolls" is in theaters on May 3rd.