It was bound to happen eventually. The Call Of Duty games are the biggest selling entertainment product ever, producing the kind of numbers that would put a small country to shame. Theyve become an annual global juggernaut that easily rivals the biggest movie franchises out there and it was only a matter of time before a movie version arrived. The only real surprise is the amount of time its taken. Activision have been reluctant to let movie companies adapt Call Of Duty in the past, no doubt being put off by the quality of videogame to movie adaptations thus far. But theyve finally decided to take the gamble and, if they pull it off and make a successful movie series out of the game, then they can expect to have daily money fights in the Activision offices for years to come. There are however a huge number of potential pitfalls to overcome. The road to Scrooge McDuck levels of wealth is a treacherous one paved with bad decisions and other failed videogame movies, and Activision will need to be smart in how they approach it. Succeed and theyll be the envy of the movie business. Fail and they might cause permanent damage to their annual cash cow. One thing is for sure; there will be a hell of a lot of explosions.