Overview
The Romantics is a 2010 American romantic comedy film based on the novel of the same name by Galt Niederhoffer, who also wrote the screenplay and directed the film.
Plot
A group of seven college friends, who called themselves The Romantics (because of a shared interest in the Romantic Era), reunite after six years when two of them, Lila and Tom, are planning to marry. Before he got involved with Lila, Tom was in a serious relationship with Laura (the two relationships overlapped). Laura is a bridesmaid at the wedding, and having a hard time disguising her emotional upset and disappointment over how things worked out.
While the other friends joke, amiably bicker, and erotically cavort, Lila and Tom deal with their uncertainties over the impending nuptials, while Laura, much more restrained and buttoned down than the others, tries to talk Tom out of going through with it. The night before the wedding, they have an intense conversation, where he tells her that their romance was emotionally exhausting for him, too many highs and lows. She believes he's betraying his ideals, but it's not clear he ever had any. Later, they have sex.
The next morning, Laura tells Lila what happened, claiming that she wants to save her friend from a bad marriage. Lila understandably insists Laura did what she did out of jealousy, and is simply trying to break her and Tom up. She still has every intention of going through with the wedding, in spite of her own doubts.
From Wikipedia (CC BY-SA 4.0).