The phrase "Filmyzilla Knock Knock movie top" typically refers to users searching for the 2015 thriller Knock Knock (starring Keanu Reeves) on the piracy site Filmyzilla

His quiet night is interrupted by a knock at the door during a rainstorm. Two young, stranded women—Genesis (Lorenza Izzo) and Bel (Ana de Armas)—ask to use his phone. What starts as a simple act of hospitality quickly devolves into a twisted game of seduction, psychological torture, and a brutal home invasion. Why People are Still Talking About It

On sites like Filmyzilla, the movie is often indexed under these specific "top" categories to help users find it:

Directed by Eli Roth, Knock Knock is a psychological thriller starring Keanu Reeves as Evan Webber, a devoted father and architect. The story begins when Evan is left alone for a weekend while his family goes on a trip. During a storm, two young women, Genesis (Lorenza Izzo) and Bel (Ana de Armas), arrive at his door claiming to be lost.