With Network and To Kill a Mockingbird just around the corner, it seems like a good time to question the practice of putting classic movies onstage. Can the theater bring any added value to such highly regarded works? Certainly it can reshape them: Network, it seems, will come with a lot of multimedia doodads and whatever else director Ivo van Hove drags into it, and Mockingbird will feature adults in the kids’ roles. Whether those shows will equal the impact they had on the big screen remains to be seen. Meantime, downtown, Axis Company is also having a go at screen-to-stage, with its adaptation of High Noon.