They first won their first Oscar awards in the early 90′s for their original film Good Will Hunting. Back then, Matt Damon and Ben Affleck were just two newbies of Hollywood, with barely the experience of their co-nominees in the category of Best Screenplay. They have been friends for so long but after that movie and that win, they each went their separate ways professionally, only to dabble occasionally on other projects.
I kinda hope that they would do another movie together and it is being reported that this duo will actually do just that.
The premise of the movie is about a sport sex scandal from the 1970′s, with to New York Yankees pitchers involved in a wife-swapping scenario. This eventually kid their stellar career.

The movie is said to be in development, with Ben Affleck not only starring as one of the pitchers, along with Matt Damon, he may possibly even direct the movie.

The details have not yet been outlined in full.

Source