Hansel & Gretel: Witch Hunters is a 2013 American-German dark fantasy action-horror neo-noir film written and directed by Tommy Wirkola. It is a continuation to the German folklore fairy tale "Hansel and Gretel", in which the titular siblings are now grown up and working as a duo of witch exterminators for hire. The film stars Jeremy Renner, Gemma Arterton, Famke Janssen, Peter Stormare, Thomas Mann, and Derek Mears. Wikipedia
Hansel: We learned a couple of things while we were trapped in that house. One, never walk in to a house made of candy. And two, if you're gonna kill a witch, set her ass on fire.