This film opens with a river and shows a baby riding from its cradle and soon lands ashore. What film is that?
Kinda sounds like "Willow", but it doesn't exactly open with that scene.
it might be the unsinkable molly brown?
that ones kind of an older movie though.
Wholly Moses! (1980)
dudley moore
http://www.imdb.com/title/tt0081751/