<prompt> I-Passage: NgoJanuwari 26, 2015 i-Lionsgate yathola amalungelo okusakaza ifilimu. I-Knock Knock yaqala ukukhonjiswa eSundance Film Festival ngoJanuwari 23, 2015. Le filimu yakhishwa ngo-Okthoba 9, 2015 e-United States. Umbuzo: Iyiphi ifilimu yefilimu i-Knock Knock eyaqala ukusakazwa kuyo?  <response>: Umkhosi Wefilimu WaseSundance ka-2015 