Call options delist at (Box Office - strike price) if the strike price is met.
If the strike price is not met, the call option delists at $0.
The big factor is what price you invested at. This makes a big difference in answering these questions for you.
A) if a call option meets its strike price then it delists at (box office - strike price).
If you shorted Movie X call option [strike price $20] at $5 and the movie makes $22 then you would make a profit. Call Option worth = (Strike price $20 + $5 price) $25 Delist = $23
If you shorted Movie Y call option [strike price $20] at $5 and the movie makes $30 then you would lose money. Call Option worth = (strike price $20 + $5 price) $25 Delist = $30
B) call options delist at $0 if they do not make their strike price.
If you short a call option and it does not meet its strike price, then you double your investment.
If you shorted Movie X call option [strike price $20] at $5 and the movie makes $18 then you would make a profit. Call Option stock price = $5 Delist = $0
You would get your $5/share back... plus $5/share profit from the stock price going from $5 to $0.