User blog comment:Goku484/Is Cooler Cannon?/@comment-4072803-20120331151249

It could not be a movie alternative to the Frieza Saga, as they clearly mention that the battle with Frieza occured. And second, this COULD take place during the 3-year wait for the Androids to arrive (as you probably mentioned). It could fit into this timeline because we never get a clear picture of what exactly happened, besides that Vegeta and Bulma had Trunks, Goku and Piccolo trained Gohan, and some trivial stuff. However, once again, this is up to the viewer.