That intro is exactly 30 seconds... It's like it was written with the intention of being a LeBron commercial.
Which is why its used all the time. You just need to recreate that "We Are All Witness" Billboard:
Shot opens, its raining, close on LeBron's face on the billboard, back to a crying child, outside in the rain, clutching an old LeBron Cav's Jersey, staring at to the billboard, Sun comes out, kid's smiling. Pull back, loads of people with throwback LeBron jerseys all cheering. Sad violins all day.
I still think he's staying with Miami.