Hollywood legend Clint Eastwood threw his support behind presidential candidate Mitt Romney Thursday night at the Republican National Convention in Tampa, Fla.

Eastwood made a surprise appearance as the convention's "mystery speaker." He criticized President Obama for failing to live up to his promises or turn the economy around.

"This administration hasn't done enough to cure that, and whatever interest they have is not strong enough," he said. "I think possibly it may be time for somebody else to come along and solve the problem."

Eastwood made the remark after saying that the millions unemployed in this country is a national disgrace and something to cry about.

The actor presented much of his speech as a mock interview with the president, often drawing laughter from the crowd.

"We own this country," he said addressing those gathered.

"When someone does not do the job, we got to let him go," he said.

Earlier this month, Eastwood formally endorsed Romney during a fundraiser in Sun Valley, Idaho.

"Now more than ever do we need Gov. Romney. I'm going to be voting for him,'' Eastwood told Romney supporters Aug. 3.