Little green guys

hello. i need help figuring out if i have actually seen these movies or if i made them up in my head. in one (live-action) these kids are on a beach and they find a little alien lookin green guy possible hatching from an egg. in the other (also live action) there’s a little green alien looking guy and there’s a swamp or something like a swamp that the main characters are trying to prevent some rich guy from turning into a modern shopping and living place (possibly a boujee hotel??)

the first is “five children and it”.

“labou” is the second one