A lot of people recommend that, and I guess I can see some of the validity if you can't get into the show, but I personally loved every second of the original series and thought the pacing was great as is. Plus, if you're watching it dubbed, the movie dub is terrible, while the tv series is excellently dubbed. Brad Swaille and Michael Kopsa make an excellent Amuro and Char.
Plus the TV soundtrack > Movie soundtrack. Not a big fan of the movie arrangements and new songs. That said, Ai Senshi and Encounters are both fantastic songs
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"One of these days, I'm gonna find a loophole my friend." - Man in Black