CNN  —  Don’t be fooled by the knocks that she’s got, Jennifer Lopez is still as driven as Jenny from the Block. The superstar singer and actress hasn’t had an easy time of it this past year, ranging from her decision to cancel her concert tour to her filing for divorce from Ben Affleck . Lopez, however, sounds like she’s bounced back and ready to fight on. In a recent interview with Variety , Lopez talked about her role as a determined mother in the upcoming film “Unstoppable.” Lopez portrays