About to see the 3rd Hunger Games in the cinemas, haven't seen 1st and 2nd. Do or Don't?

So I'm about to see the 3rd movie of the Hunger Games without having seen the first or second part.

Will it spoil the first and 2nd part alot, or can I just easily go for it and watch it? I'm about to go with friends which I will probably never see again in a month, so I'm contemplating whether it's worth it to see the movie and spoil the first and 2nd part, or if it won't spoil anything at all.