Shounen makes up the boy-oriented side of Japanese animation and it’s generally aimed at early teens. Shounen anime usually contains character themes such as friendship, teamwork, working towards a goal, courage/bravery, conviction to do what is right or prudent; and sometimes even resolve in the face of conflict with enemies.
There are many shounen anime movies that would be good for family viewing – Nausicaa Valley of the Wind;The Tale of Princess Kaguya ; Tales from Earthsea ; Spirited Away . These movies offer an ideal mix between light heartedness and serious moral conflicts.