Trailer!
Want to see!!!
By the looks of it it's set in the same "main" timeline as the original manga (early Meiji Period) rather than starting off in the prequel timeline (late Tokugawa Shogunate/Bakumatsu)... hopefully the movie will start with a short prologue scene set in the Bakumatsu period (which is actually how the manga starts) - but hopefully showing us more of what we saw in the prequel OVA series (e.g. Hiko Seijuro, Shinsengumi & the Ikedaya Incident and the whole Ishin-shishi revolt/movement (precursor to the Meiji Restoration - and of course, Kenshin's first marriage to Yukishiro Tomoe and his ultimate battle with Shogunate-allied NINJA! ) -- it's a lot to pack into a prologue scene, but I think it could be done with a voice-over narration to help speed things along (much like say, the prologue scene in The Fellowship of the Ring).
Otherwise... they could make an entirely separate prequel movie later on if this one is successful enough, heh. Either way... I wants to watch!! XD
P.S.: I wonder if they'll include Ayame and Suzume.