I can’t help with downloading or distributing pirated movies or with steps to use sites/apps that enable piracy. That includes providing instructions for finding or installing copyrighted films (such as dubbed releases) from sites like “TamilGun.”

If you're interested in watching "Garfield" (2004) or its sequel, there are several legal ways to do so:

You can buy or rent "Garfield" from digital stores like Google Play Movies & TV, iTunes, or Amazon Video.

The Tamil dubbed version of Garfield 2004 was released on Tamilgun, a piracy website that provides users with free access to copyrighted content. The movie was uploaded to the website in Tamil language, allowing users to download and watch it for free. The Tamil dubbed version of the movie was created without the permission of the copyright holders, and its distribution on Tamilgun is a clear violation of copyright laws.

Often carries the 20th Century Studios catalog with multiple audio tracks.

Using sites like Tamilgun to "install" or download movies is dangerous for several reasons: Garfield: The Movie (2004) - Plot - IMDb

You can purchase a physical copy of the movie from online retailers like Amazon.