what are the highest-grossing opening films?
marvel's the avengers, iron man 3, harry potter and the deathly hallows - part 2, the dark knight rises, the dark knight, the hunger games: catching fire, the hunger games, spider-man 3, the twilight saga: new moon, the twilight saga: breaking dawn - part 2, the twilight saga: breaking dawn - part 1, pirates of the caribbean: dead man's chest, iron man 2, harry potter and the deathly hallows - part 1, shrek the third, man of steel, alice in wonderland, spider-man, pirates of the caribbean: at world's end, toy story 3, transformers: revenge of the fallen, star wars episode iii: revenge of the sith, shrek 2, x-men: the last stand, harry potter and the goblet of fire, indiana jones and the kingdom of the crystal skull
which is the highest of these?
marvel's the avengers