Jennifer Aniston plays with her hair at the "Cake" news conference at the Toronto International Film Festival (TIFF) in Toronto
Jennifer Aniston plays with her hair at the "Cake" news conference at the Toronto International Film Festival (TIFF) in Toronto, September 9, 2014. Reuters/Mark Blinch

Jennifer Aniston was recently seen flaunting her engagement ring at the screening of her film "Cake." The actress looked stunning in a coral mini as she posed for the camera. Actress' beau Justin Theorux was also seen at the event. Francisco Costa designed Aniston's dress. She coupled her look with a pair of silver heels and kept her hair open. She wore minimal acessories and made sure that her 8-carat diamond ring remains in focus.

Jennifer and Justin got engaged in April. Since then they have made various public appearances; however, it is still not known when do they plan to get married. The duo started dating on the sets of "Wanderlust." Aniston was previously married to Brad Pitt. The couple called in quits in 2005. Pitt is now married to his "Mr. and Mrs. Smith" co-star Angelina Jolie and has six children with her.

Meanwhile, in regard to playing the role of Claire Simmons in the movie "Cake" Aniston said, "It was the hardest job I'd ever, you know, taken on and I loved every second of it. It was hard. It was five weeks in and out and I was saying, you know it's a hard body to live in, but told a good story," reports E!

"Cake" tells a story of an acerbic woman living in Los Angeles who has survived a tragic accident. The woman tries to uncover details of a suicide of another woman. To prepare for her role, Aniston did not workout for more than two-months. She was supposed to gain weight and look dowdy. The 45-year-old actress also dyed her famous golden locks to black.

Cake will get a limited release in December, so that it becomes eligible for this year's Academy Award. It will get a worldwide release in January 2015.

Meanwhile, apart from attending "Cake's" screening, Jennifer and Justin also attended the "Horrible Bosses 2" celebrations. She celebrated her upcoming movie with Courteney Cox and her fiance, Johnny McDaid, Jason Bateman, Jason Sudeikis and Chris Pine. The party was held at Sadie Kitchen & Lounge in Los Angeles.