Other Woman's Leslie Mann Grabs Cameron Diaz's Butt on the Red Carpet!

Kate Upton and Leslie Mann step out to promote their film The Other Woman on Thursday (April 3) in London, England.

The day before, Leslie, 42, was captured grabbing and squeezing her co-star Cameron Diaz‘s butt on the red carpet! Take a look at the pic!

PHOTOS: Check out the latest pics of Kate Upton

In case you missed it, check out the red carpet pics of Kate, Cameron, and Leslie from the UK premiere the day before.

The Other Woman debuts in the US on April 25 and on April 23 in the UK.

10+ pictures inside of Leslie Mann and Kate Upton promoting The Other Woman…