I watched a cartoon movie around 1986-1989 with I believe a blue-skinned race of pointy headed people onto which a round headed child was born (Please read further understanding that I may not correctly remember the situation. The boy may have been pointy headed and the reast may have had round heads) . Eventually he was exiled, went on journy, and later returned to his village and he was welcomed or something. I remember a montage with a church steple or building top turning from pointy to round, or vis-a-versa.
Everytime I search for this online I get Conehead results from the SNL skit and it's derivatives, so hopefully you all can help me find this!