Lars Egholm Fischmann at 2012-07-16 12:25:54:
I've always gone with the generic definition of plot as the main story, the general concept, the promise and delivery set up with word one page one and delivered in the 3rd act denouement. It's the central theme that all other story elements revolve around.
I don't think the general idea around a main plot in a movie is all that different than in a novel, but with a novel you can probably have a lot more sub-plots?
I'd love to read other peoples thoughts on this - because I think my view on the topic is very limited.