Symbols, symbols, hm ...

ok, let me try:
Tali carves through New York (Big Apple)
Anthony is using his i-pad (Apple) while doing EC
Julien catches the apple on the slope with his mouth
In some cases the apple looks like a hand grenade.
Ok: in the beginning of the film we will see some explosions.
Then a rolling hand grenade in front of some skiers.
Then Patrice will save the world by cutting the hand grenade in an EC-turn.
Ahh no, he won´t save the skiers - it must be more important:
a piste-bully, the stand with the Swoard boards, or that young bikini girl that Abrax mentioned.