Reasons why future DBZ films/ova's/anime won't work anymore...
This movie (haven't seen the previous one yet where Beerus is the main villain) has shown me many things, but I'll only list one or a few here.
This series should remain untouched. They can make videogames if they like, but the magic of DBZ ova's or movies is gone, especially if they try to make it in continuity with the main series.
While this movie wasn't all that bad (the plot being Freeza's back), it just doesn't have that Freeza feel. I don't know how to put it in words.
No sense of peril, no suspense, no despair feel. No, all gone. Even as Freeza powered up in his new gold form, Goku was enjoying the fight and Vegeta toyed with him. It's like they don't even have to try anymore. They're too powerful. Sure, Freeza was at some point more powerful than the Super Saiyan God SS, but you as the watcher don't feel the hopelessness you would have back in 1989, in my case, reruns 1997-2002. Watch the Freeza saga, the Cell games, Majin Buu saga. Those were the golden years. Even some of the movies managed to capture that magic (Broly first movie, Bojack movie, Janemba movie, Hildegarn movie). That magic where the hero is in despair as he has no way of beating his opponent. He really has to overcome his opponent, many times by way of unlocking a higher potential, or new transformations. DBZ ended well and they should leave it at that.
(Even DBGT had it's moments. Remember when Goku's Super Saiyan 3 transformation failed? or when Bebi-Vegeta defeated Goku and assembled the Saiyans powers?)
My point: The movie itself is not bad. Watch it and enjoy it. But, that Dragon Ball feel we dbz veterans are looking for, just don't look for it. It's gone and ended with the last episode of Dragon Ball Z: Doragon bôru zetto (1989)