I checked this DVD out of the library, so can I show it to my group?
Are you an instructor showing a film to your class for teaching purposes, not for entertainment?
For all other types of showings: No, probably not.
Just buying an ordinary DVD or Blu-ray does not give the CSUSB libraries (or anyone else) the public performance rights for the film. A special DVD or Blu-ray sold with performance rights is required; these typically cost hundreds of dollars.
Can I show a streaming video to my group?
You are free to arrange showings of streaming videos found in our databases to any on-campus group, whether that's during a class, or as part of a campus organization's activity, so long as you are not charging admission and not making any profit from the showing.
However, YOU CANNOT INVITE THE PUBLIC to view the film.