Xfinity ran this gallery of big celebrities who got very, very lucky. While most hone their craft for years and live the life of a starving artist, waiting tables looking for their big break, others walk right into it blindly. Channing Tatum and Jennifer Lawrence for example. They weren't even trying. It was the classic, hard to believe story of literally walking down the street and being spotted by and approached by a scout. Check out these amazing stories here.