Filmyzilla is a website that provides free movie downloads, including Bollywood, Hollywood, and regional films. The website claims to offer a wide range of movies in various languages, including Hindi, English, Tamil, Telugu, and more.

"Grand Masti" is a 2016 Indian Hindi-language comedy film directed by Pravesh Jain and produced by Vindeshwar Pathak. The movie is a sequel to the 2007 film "Masti" and stars Riteish Deshmukh, Tusshar Kapoor, and Shreyas Talpade in the lead roles. The film follows the story of three friends who get into a series of misadventures.

While Filmyzilla may seem like a convenient option for movie downloads, there are concerns regarding the website's legality and safety. The website is known to host copyrighted content without permission, which can infringe on the rights of filmmakers and producers.

That being said, here's some information about the movie "Grand Masti" and a general overview of the website Filmyzilla:

Additionally, downloading movies from unauthorized sources can pose risks to users' devices, including malware and viruses.