Hollywood stars are just like us normal folk: They turn down jobs sometimes, too.

And like us, they also regret turning down some of those gigs -- especially when those roles become iconic, change-the-way-we-make-movies big deals. Just ask Will Smith, who passed on several game-changing parts.

Just in time for Will Smith's birthday this week, here are a few big movies he turned down that would have made him an even bigger star.