Hollywood 411 interviews Johnny Galecki, the actor behind Leonard from The Big Bang Theory. Johnny goes over how he prepared for the part and where he sees his character's relationship with Penny going. Worth a watch!

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TBBT Quotes

Mrs. Cooper: Shelly! I'm so glad you're here!
Sheldon: I saw you having naked sex.

Penny: I give up, he's impossible
Sheldon: I can't be impossible, I exist. I believe what you meant to say is, "I give up, he's improbable."