Worldwide it became (as of today) the highest-grossing movie of all time:<p><a href="http://boxofficemojo.com/alltime/world/" rel="nofollow">http://boxofficemojo.com/alltime/world/</a><p>However, inflation-adjustment is harder for the worldwide figure since inflation varies by country and you'd need to know the individual grosses for each one.
[Edit: actually, is that true if the figures are in USD?]