Actress Aishwarya Rai Bachchan, who has marked her 15th year at the Cannes Film Festival, stood out with a purple pout when she stepped out on the red carpet of the gala for the screening for her forthcoming film "Sarbjit".The actress made heads turn with a pop lilac lip colour, paired with an embellished light pink Rami Kadi dress.Aishwarya, who is representing cosmetic giant L'Oral Paris at the gala, attended the screening of her film "Sarbjit" at the Cannes Film Festival on Sunday. She was accompanied by the film39s director Omung Kumar, actress Richa Chadha and producer Jackky Bhagnani.Directed by Omung Kumar, "Sarbjit" is a biopic on Sarabjit Singh, an Indian farmer who was convicted of terrorism and spying in Pakistan. He was attacked and killed by inmates at a Lahore prison in April 2013. Randeep Hooda will be seen playing Sarabjit Singh in the film.The film is narrated through the perspective of Sarabjit39s sister Dalbir Kaur, played by Aishwarya.