We looked at "The Art of Storyboarding" in our introduction to Storyboards and Video Production Planning. We made note that the storyboard is the first thing we must complete in a video project, since it will guide the entire production (and post-production.) Students will pitch their storyboard, get feedback, discuss options, and incorporate revisions and improvements in their plans.
Students can see the 1943 Storyboard Pitch for Disney's Lady & The Tramp as reconstructed from actual scripts and photos here: Lady & The Tramp Storyboard.
But perhaps a more useful example is this example for a short animation of "Heroes & Villains." Happy Pitching!