Then you have Dragon Ball GT which is non-canon, meaning the story was not created by Akira Toriyama; the original creator of DB/DBZ.
But not only is a new Dragon Ball Z movie coming out; Dragon Ball Revival of F, but a new series as well called Dragon Ball Super.
Two episodes are out already and it takes place right after the Buu Saga which is where DBZ ended. The first 2 episodes were great, glad to see nothing really changed with the characters, they're all act the same and it still has it's little Dragon Ball comedy too it.
Dragon Ball is life