amazing grace

Might this be it?

http://www.belfastfilmfestival.org/2005/programme/film.php?f=27

Or this?

http://www.imdb.com/title/tt0466427/

soz
no soz that wasnt it , it had a mother and daughter preeching at doors and then they knock on a wrong door . and at the end a ball smashes the window and saves grace .(i dont want to give to much away , encase anyone wants to see it )

Here's a link to the IMDb page with anything with "Amazing" or "Grace" in the title -- I'll let you search it:

http://www.imdb.com/find?s=tt&q=Amazing+Grace