Photos: On-screen presidents
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By Rachel Abramowitz, Patrick Kevin Day and Kate Stanhope
Don't think you really know your presidential history? Think again. If you've consumed network TV or blockbuster films in the last few decades, you've picked up more presidential history than you know -- because our fictional leaders are often patterned after the real-life guys in the Oval Office. Here's a quick primer to separate the fiction from the reality.