The main story thread of the movie [**Men in Black III**](http://en.m.wikipedia.org/wiki/Men_in_Black_3) involves going back in time using a Time Jump device to alter the past and save the earth's future. 

I don't know much about time travel, and I know even less about [Temporal Paradoxes](http://en.m.wikipedia.org/wiki/Temporal_paradox), but **was there a Temporal Paradox created in MIB3?** If so, then which?