
Continuity mistake: When Doctor Strange attempts to use the Time Stone on Ebony Maw, Maw ties up Strange telepathically and strangles him unconscious. Beside Strange is a police car and a motorbike tipped on its side. Maw then lifts the ground he is lying on, but the police car has been replaced by an SUV and the motorbike has disappeared. The shadows also change. (00:23:25)






Answer: Although many fans speculated it was because the Hulk fears Thanos after Thanos easily defeated him at the beginning of the film, the Russo brothers have since come out and said that it's because the Hulk feels that Banner only wants the Hulk around for helping him in fights, so his refusal to transform is a protest of sorts.
Phaneron ★
I think it's both.
Well it's not both. The Russo Brothers, who directed the film, have openly stated that the Hulk is not afraid of Thanos.
Phaneron ★