"Yeah, I did a cameo in an upcoming movie called Constantine"

In this quote, Matthew McGrory is stating that he had a little appearance in a movie that has actually not yet been launched, titled "Constantine." A cameo is a quick appearance or function in a film, generally played by a widely known star or star. By mentioning this, McGrory is likely expressing excitement or pride in being a part of the movie. He might also be meaning the possibility of his fans seeing him in a various kind of function than they are utilized to. In general, this quote gives a glance into McGrory's involvement in the movie market and his anticipation for the release of "Constantine.".