WASHINGTON, DC - The iconic Canadian actors Margot Kidder and a Tantoo Cardinal were arrested Tuesday morning at 11:30 a.m. in Washington, D.C. as part of an ongoing sit-in at the White House to pressure President Barack Obama to deny the permit for a massive new tar sands oil pipeline.

"I can't think of a more important place to be," said Kidder, who is best known for her role as Lois Lane in four of the original Superman movies. "President Obama has the chance here to do the right thing and stop this pipeline. I'm here to help make sure he does it."