British actor Hugh Grant says he's not a big proponent of marriage but supports marriage equality in a new video for the Out4Marriage campaign, which supports the British government's plan to legalize gay marriage by 2015.

“I'm not a massive believer in marriage – I think my own biography is testament to that,” Grant says in the 30-second clip released Tuesday.

“But I do think that love is the same for everyone. And I do think that everyone should have the same rights.”

“If you want to get married, whether you're gay, straight, transgender, whatever, you should definitely be allowed to do that,” he says. “So, I'm out for marriage, are you?” (The video is embedded on this page. Visit our video library for more videos.)

The 52-year-old Grant is best known for his role in Four Weddings and a Funeral.

Joseph Musgrave, political director for the Out4Marriage campaign, welcomed Grant's endorsement.

“Although it's great to have such a well-known celebrity support us, Hugh's key contribution is to emphasize the human element. This is about the recognition of love and freeing people to decide how they, and not the state, choose to act on that,” he said.