Laura Prepon engaged to Ben Foster

Actors Laura Prepon and Ben Foster have got engaged.

Prepon flashed a big smile as she flaunted her diamond ring during the screening of her new film "The Girl on the Train" on Tuesday, reports aceshowbiz.com.

She donned a Nha Khanh designer dress as she attended the screening here with her fiance.

The movie premiere marked their red carpet debut as a couple.

Foster was previously in an on-and-off relationship with Robin Wright before they split last year, while Prepon has previously been in a relationship with Christopher Masterson and Scott Michael Foster.

--IANS

sas/rb/vt