Breakin' All the Rules (2004)

After being dumped by his model girlfriend, aspiring writer Quincy Watson quits his job and is inspired to pen the ultimate how-to book on breaking up. When it becomes a smash bestseller, he starts giving his player cousin, Evan, choice tips on how to win the battle of the sexes. After Evan's beautiful girlfriend, Nikki, utters the words "we need to talk", Evan panics and decides to leave her before she can leave him. But when Nikki realizes Evan's connection to break-up guru Quincy, it's these players that end up getting played.