By: Addison Wylie It takes patience to mull thorough Mark Lewis’ Invention.  However, even the calmest movie goers may find themselves jiggling their leg and looking at their watch. Invention features visual artist Lewis and a wandering, hovering camera (driven by cinematographers Bobby Shore and Martin Testar) visiting Toronto, Paris, and Sao Paulo.  His feature film debut asks audiences to find fascination in minor details.  The camera floats, locks in on open, negative space and waits for…