Jordan Moreau The Guardians of the Galaxy are blasting off at the box office one final time, earning $17.5 million in previews for director James Gunn’s “Vol. 3” finale. The newest entry in the Marvel Cinematic Universe will take the box office crown after Universal and Illumination’s “The Super Mario Bros. Movie” topped the charts for the last four weeks. “Guardians of the Galaxy Vol. 3” is expected to bring in between $110 million and $120 million in its opening weekend, which is in between the grosses of the previous two films, also directed by Gunn. The first “Guardians of the Galaxy” had $11.2 million in Thursday previews on its way to opening with $94 million back in 2014. Its sequel, 2017’s “Guardians of the Galaxy Vol. 2,” reached $17 million in Thursday previews and landed a $146 million opening weekend.