Be careful of "ing" verbs used as nouns. The sentence you used "There is a Star Wars showing..." is an example of "showing" as a verb. At least it reads to me like a verb. I suppose one might argue it's being used as a noun, but it's a grey area. A better way to use it with your subject would be: Is Star Wars playing at the theatre? Yes, there is a showing there.
But keep in mind, that in American English we use "showing" (noun) to refer to things on display (ie: art, cars, etc.) - rarely, if ever, with movies.
As for your two sentences: Star Wars is playing at a nearby theatre. If people boycotted, then the company might close soon. (keep in mind that when you boycott, you are actually punishing the company by not buying or using their product - the goods is an indirect object of your action of boycotting)
prolific - is an adjective and is generally used to describe a person with a strong vocabulary and knows how to use it. Could also be someone who talks a lot.
I'm not sure of your other word...is it spelled correctly? |