Samuel L. Jackson - Kong: Skull Island

The Hollywood icon has become firm friends with Brie Larson since filming ‘Kong: Skull Island’, ‘Captain Marvel’ and ‘Unicorn Store’ together.

And their friendship led to him confessing his secret on-set farting.

Appearing together on James Cordon's Carpool Karaoke, Jackson and Larson each took turns taking a polygraph test.

Larson asked Jackson if he ever farted while filming a scene, to which he honestly replied: “All the time."