Tom Sizemore, who starred in “Natural Born Killers” and “Black Hawk Down” is joining the Paris Hilton’s of the world and taking a trip to prison.  Sizemore was sentenced to 16 months behind bars for violating his probation on the basis of narcotic possession. Initially, Sizemore was placed on 36 months of probation for possession of methamphetamines last January after a tearful court admission. Then, on May 8th of this year, authorities onc...