Lee
Adventurer
It's a shame that Clash Of The Titans can get a sequel at another company, yet Prince Of Persia and The Sorcerer's Apprentice were left to languish under Ross (and a studio desperate for franchises).
That is purely a result of box office performance.
Titans cost about $125m and brought in nearly $500m.
PoP cost nearly $200m and made less than $400m.
Apprentice cost $150m and only made about $215m.
(Bearing in mind those budgets don't include marketing costs.)