Pete's Dragon 1977

Live action and animation are combined for this 1977 musical tale of a cuddly green dragon named Elliott (voiced by Charlie Callas) and a young boy who befriends him, Pete (Sean Marshall). Very young children may find the story a little scary – Pete has to escape from a nasty family to whom he’s been sold into slavery and a travelling medicine man (Jim Dale) wants to capture Elliott and put him on display – but there is fun stuff, too, especially when Elliott makes himself invisible and causes chaos in the town.
It has dated somewhat – and most kids familiar with Who Framed Roger Rabbit and other live-action and animated adventures will have seen the blend done better – but younger viewers may at least think the dragon is cute.