The 18 million figure was from another person's earlier post. They had an estimate of total cost for chip development and were extrapolating how much the film would need to gross in order to raise those funds. I simply gave some more information about how the process works and, most importantly, how long it takes.
To give you a concrete example, I did a project in partnership with MGM. Each time a unit is sold, the distributor takes 90 days to report and pay MGM. They then take another 90 days to pay me my share. That's pretty standard in the entertainment business and I'm actually thrilled because so far they've actually been paying me what they owe, albeit slowly. I could tell you lots of stories about accounts receivables that never get paid. Always go for cash in hand in the entertainment business.