In Marvel Studios’ “Guardians of the Galaxy Vol. 3,” our beloved band of misfits is looking a bit different these days. Peter Quill (Chris Pratt), still reeling from a terrible loss, must rally his team and embark on a dicey, action-packed mission to defend the universe and protect Rocket. Meanwhile, a new, unpredictable force threatens to bring the Guardians down for good. “Guardians of the Galaxy Vol. 3” is written and directed by James Gunn. WARNING: Some flashing-lights scenes may affect photosensitive viewers.