As far as I know, he is. They're just not covering it in the manga. There's just a pnel at the end of the Universe Survival arc that's like "The events of the Dragon Ball Super: Broly movie take place here." and then it starts the next arc.
They did the same thing with the Resurrection F movie. The manga covered Battle of the Gods, but skipped Ressurection F with a "That movie goes here" panel.
So if you're a manga reader, you're supposed to read to that point, then go see the movie, then keep reading.