From the title alone I knew I had to watch this movie. I mean come on, Justice League vs Teen Titans is the kind of argument you and your friends would get into during your lunch break in high-school! Personally I would say the Justice League would always win in such a matchup, but a case could be made for certain iterations of the Teen Titans ... From Google: "Robin is forced to join the young super team and soon has to help lead them in a fight against the mighty Justice League after they are possessed by the demon Trigon."