Unfortunately, there aren't any clips or still images that featured Talulah Riley in this movie that I could find or have seen from the official website (or any sites featuring the movie) and its TV spots commercials or its trailer, which you can see below. She must have had a very brief scene(s) in this movie...
Brief synopsis (via IMDB): A man discovers that his best friend's wife is having an affair.
Watch the trailer for The Dilemma
(source: UniversalPictures)
Speaking of Talulah Riley, she just walked down the runway during the Alberta Ferretti fashion show during Pitti Immagine Uomo 79 on January 11, 2011 in Florence, Italy.
Check out a couple TL pics below...
Also, Talulah and actor Dominic Cooper are said to co-hosting the BAFTA shortlist/nominations announcement on January 18th!