Though they've always tried to keep their romance out of the spotlight, Slumdog Millionare co-stars Freida Pinto and Dev Patel showed they're still going strong as they stepped out together on Wednesday.

Freida looked stunning in a one-shoulder green Oscar de la Renta cocktail dress, as she accompanied her boyfriend to the premiere of his latest film, The Last Airbender.

Dev also showed off a very polished style, looking dapper in Dolce & Gabbana.

While the couple looked very much in love on the red carpet, the British actor - with some help from his mum - recently put to rest rumours that the two were planning to tie the knot.

He told a US magazine: "My mum will go to work and explain to everyone why they have written that her son is going to get engaged, and got a wedding ring, and how it's all not true."

Photo: � Getty