The Obama campaign has stepped up its mockery of Mitt Romney's foreign policy views, continuing a theme rolled out at the Democratic National Convention to portray the Republican candidate, who has limited foreign policy experience, as out of his depth in international affairs.

The latest installment: a fake movie poster that uses the line Senator John Kerry debuted in his speech two days ago at the convention, where he compared Mitt Romney's national security ideas to those of Sarah Palin.

"Sarah Palin said she could see Russia from Alaska," Kerry said on Thursday. "Mitt Romney talks like he's only seen Russia by watching Rocky IV."

President Obama also piled on in his DNC speech: "After all, you don’t call Russia our number-one enemy — not al Qaeda, Russia — unless you’re still stuck in a Cold War mind warp."

Obama campaign officials believe that Romney is vulnerable on foreign policy after his difficult trip overseas in August and his failure to mention the war in Afghanistan in his speech in Tampa.

Those were the latest stumbles Chicago has seized upon. Earlier in the year, a Romney advisor also incorrectly referred to Russians as "Soviets," a problematic term as the Soviet Union ceased to exist in 1991.