The 44-year-old musician took to Twitter to reveal that Noel, 49, is refusing to attend the documentary's premiere.
"So the Ronnie Corbett of rock n roll aka Noel Gallagher not doing press not attending premiere for oasis film 2," he wrote.
The singer, who has had an uneasy relationship with his elder brother over years, previously revealed that he only uses Twitter to annoy Noel.
"Lots of people say I need to chill out about Noel. Not until they stop Twitter. That will always get it from me. I've heard (my tweets) really annoy him.