I had my reservations before I watched the movie because I thought this would be another epic adventure love story, with a social agenda twist. However, I am a big sci-fi fan and feel compelled to see the lastest movie technology whenever something new is released. James Cameron did a GREAT job getting his message across without being preachy and told a love story without it becoming sappy. The love story did not interfere with the action and adventure. Thestory was fast moving and length of the movie was appropriate without feeling tired when the movie was over