You should take time to watch all the movies you're purchasing
Great, silly fun, but I was particularly enthralled because of the heavy (for the time) use of computer generated effects (and that the F/X company used the mystical Cray X-MP

)
A few years earlier I was equally stunned by Tron.
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IM 2 is decent, the whole plot with Rourke is a bit meh, but Rockwell is incredible, RDJ is of course great in the role as always, and of course we also get the briefcase armor which was a killer comic book moment.
IM 3 is fun, better than 2, a bit controversial because of the handling of The Mandarin (I totally dug on it), it was directed by Shane Black, famous for Lethal Weapon films, but I'd highly recommend his movie, Kiss Kiss Bang Bang (that also stars RDJ, plus Val Kilmer)