Actor Chris Pratt, who will return as Star-Lord in "Guardians of the Galaxy Vol. 2", says the upcoming film is a "little different" from other superhero movies and will be one of the biggest films "of all times".Pratt praised the James Gunn directorial during the premiere of "The Magnificent Seven" at Toronto International Film Festival, reports aceshowbiz.com."They've instructed us not to say anything. I'm already so proud of it. We worked really hard on it and it's a joy to be part of," Pratt said when asked about "Guardians of the Galaxy Vol. 2". "It's a fabulous script. I think it's going to be - I'm not using hyperbole, here - I think it's going to be the biggest spectacle movie of all time. "It's new and exciting and unlike anything people had seen before. There are a lot of superheroes out there, but I think we do something a little different. The genesis of these characters was in the Marvel Universe but we do something a little different, more cosmic, with 'Guardians of the Galaxy'," he added. The second "Guardians of the Galaxy" film is scheduled to release on May 5, 2017.