First off, most sentences can either be movie sentences or concept sentences. (Not always, but most of the time you can put them into either of the two categories.)
"Movie sentences create images, sounds, smells, feelings and tastes in the reader's imagination. Concept sentences convey ideas or things that can't be pictured." - taken from writing curriculum, Cover Story
Here are two examples (also taken from Cover Story):
1. Jill's puppy loves bacon (concept)
2. Jill's puppy barks and wags its tail whenever she cooks bacon (movie)
Basically, concept is telling and movie is showing. Concept and movie are just two words to better help understand what we're talking about when we say show and not tell. (Here are some articles that may aid you in understanding this important writing concept: Show, Don't Tell, Follow-Up, Refresher #2 - Show, Don't Tell.)
Hope that makes sense to everyone! If you still have more questions, please feel free to ask!