share price is the money u pay the big al so he invest in your money. royalties are good, specially when your movie's rating is high, u will get less money @ the time of selling movie but u will get a lot of money over time.
when u go to big al to sell the movie, it shows you possible royalti & the cash he will pay you instantly, do the math & decide if it's better to do royalti or not ;)