After a compliment from her ex-husband Ben Affleck, Jennifer Lopez threw a compliment back….. kind of. Lopez responded to her ex-husband Ben Affleck’s praise after he called her “spectacular,” for her performance in the film “Unstoppable;” a project she stars in and he co-produced. At the film’s U.K. premiere on Tuesday, Lopez returned the compliment, saying, “I would describe all of the cast and everybody behind the scenes as spectacular and wonderful.” Not exactly a ringing endorsement.