The 47-year-old "Focus" actor said the offencive comments Trump made about Mexican and now Muslims are crazy, reported Us magazine.
"If people keep saying all the crazy kind of stuff they've been saying on the news, lately, about walls and Muslims they are going to force me into the political arena," Smith said.
The "Independence Day" actor also added that he always dreamt of doing things beyond Hollywood.
"'The best things that have ever happened ever were unrealistic before they happened.' You know, so for me, I think being the biggest movie star in the world as a goal actually was too small," he said.
Not only Smith, but many other celebrities like Jennifer Lawrence, Lady Gaga, JK Rowling, Matt Damon, MSNBC host Joe Scarborough and George Takei called out on Trump following his statements.