Not to be confused with the 2005 Joss Whedon space movie with Nathan Fillion et. al.. And it may not be your cup of tea, as it was not the cup of tea with IMDB raters (see above). Also with a dismal Metacritic score. (But Richard Roeper says its "one of the most entertaining thrillers in recent years", right on the DVD box. So, it may be your cup of tea.)
And there's a lot of talent involved. Oscar winners Matthew McConaughey and Anne Hathaway, for example. And I see they were nominated for this movie too: for "Worst Actor" and "Worst Actress Razzies.
It starts out as a pretty standard film noir in fact. Lots of booze, cigarettes, and hard-boiled dialog. Baker Dill (McConaughey) is a charter fishing boat captain obsessed with catching a specific tuna. His Ahab-like behavior is putting him in dire financial straits, but out of the blue comes ex-wife Karen (Hathaway) with one of those simple propositions: my new husband is brutalizing me and your son, he'll kill us if we try to leave him, could you please murder him, I'll give you $10 million.
As I said, it starts out in that honorable tradition. But things take an odd turn. Odd enough so that I'm not even tempted to spoil them. I'll say this though: the IMDB genre classification is "Drama, Mystery, Thriller", but a more honest description would add at least one more.
[OK, if you really want to know what's going on, click here.]
And here's an interesting coincidence: actor Djimon Hounsou is in this, and he was also in the 2005 Serenity! Producers, if you want to get Djimon in your movie, you know what you have to title it.