So, I saw this as a kid in the 80’s and can’t remember too much from it. It was a kids movie set in medieval times. There’s a boy and a girl both sold at auction. The boy is bought for 2 pennies (pence?) and works for this old dude. Until he discovers a secret room under the house where he has a bunch of stuff. And for whatever reason he teaches the boy how to use tiny blow darts.
Sometime later in the movie he encounters the girl again working as a bar maid and saves her. I’m not sure from what… annnd that’s all I remember!