Katrina posed with her L'Oreal Paris co-ambassador Moore just before heading for her debut on the Cannes Film Festival red carpet.
The two walked the red carpet on Wednesday night, and they spoke there for approximately five to seven minutes.
"They spoke about the number of films that Katrina has done and how she learned Hindi for Bollywood. Not only this, they also complimented each other on the dress and makeup that they donned for the red carpet," said a source.
The "Bang Bang!" actress, who is currently busy shooting for "Fitoor" and "Jagga Jasoos", will be shooting with Moore for L'Oreal Paris on Thursday and spoke about how they were looking forward to it.
The film festival began on Wednesday and will go on till May 24.
Moore, who won the Best Actress Award at the Cannes International Film Festival 2014 but was unable to receive it last year, was presented with the honour at the ongoing edition's Mini-Palme.