I cant remember movie's name

i watched a movie about 20 years ago and i forgot the name

during word war a grandpa and grandma want to send their nephew (a boy and a girl) to a safe country hire a man and woman to take them away durig movie many boy and girl join this group (8 or 9 children)
in germany they are captured but in last minute german officer give them his child and send them away
thank you

“The Book Thief” has a similar premise: