"Don't feel bad, I went to watch a film, named 'Avengers', but didn't understand what is happening in the movie," Amitabh tweeted on Sunday.
'Avengers: Infinity War' features over a dozen superheroes, who come together to save the universe from their might opponent, Thanos.
'Avengers: Infinity War' now fastest film to earn $1 billion worldwide
The film has earned over Rs 200 crore in India itself.
It stars Robert Downey Jr, Josh Brolin, Chris Hemsworth, Chris Evans, Mark Ruffalo, Scarlett Johansson, Samuel L Jackson, Chris Pratt, Zoe Saldana, Bradley Cooper, Vin Diesel, Tom Holland, Benedict Cumberbatch, Paul Rudd and Tom Hiddleston.