Jennifer Lawrence gender pay letter: Bradley Cooper, Emma Watson support

Theres a double standard in the whole world, yeah, for sure.

This is just one aspect, CoopertoldET.

So anytime theres a place where a voice can come out and be outspoken, thats great.

Credit: Dimitrios Kambouris/WireImage

I love strong women, Cooper continued.

I think it is making a difference.

The Sony hack last year revealed the Lawrence made less money than her maleAmerican Hustlecostars.

Coopers costar inBurnt, Sienna Miller, fully supported Lawrence and had a stronger call to action.

I would have felt, in some ways, unhappy.

I think we all have to just really start standing up for ourselves.

Several actors hit social media to praise Lawrences letter.

See Cooper and Millers interview atET.