I would like people to stop using the work 'lock' in their box office predictions. If the history of film has taught us anything is that no film, or film series for that matter, is guaranteed to make x-amount of dollars. Markets change, audiences tastes evolve, and film quality varies, all factors in contributing to final box office tally.
I dont agree here. You can make some pretty accurate predictions with educated guesses
Plus once a film opens and we have the numbers you can "do the math" and say something is a lock or not.
for example when AoU opened to 191,3 mil US it was a foregone conclusion it would end up with at least 400 mil even with the worst legs ever recorded for a similar movie. So you could have said 400 mil is a LOCK only after 3 days of release.
So it all depends how you say it and when you say it.
Another example was China.
When FF7 opened with 182,4 mil and was at 300+ before AoU opened boxofficemojo guess that it would pretty hard to imagine AoU finishing with 200 mil there.
And it just happened to be true. AoU is about to finish with 230-250 mil in China.
So you had to be pretty stupid or unfamiliar with boxoffice "mechanics" and trends to not agree that 200 was a lock.
Anything below 150-175 mil was a NEAR IMPOSSIBILITY so the 200 mil was a reasonable number and sligthly lowballed imho and this proved SPOT ON. (although i thought it would make 300 mil)
Now 1 bil ww for IW is pretty much a lock irrelevant of the films quality or reception. Thats a lock and something "experts" agree. Its simple match actually. And the film doesnt open until 2018 but we know that now in 2015.
Saying 2 bil is a lock though would not be fair. only hope.