agreed with all the stuff above… a formal comprehensive tutorial group of videos covering every tiny little thing would be great… it seem i look at all of the promo’s about special features and such, but there is really no information on how to do it…
ummmm… i saw an early sequencer tut about animation way back in 4.11 where he applied an ‘animation transition blend’ actor so the snap would be less obvious, but i don’t see it (yet) in ue4’s list anywhere (i’ve just tested it once, busy getting a map together) (all of my animations will be ‘in place’)…
i see a big future for cinematics for people with much more talent than I… but i enjoy my little stuff too… 
NS