*Jamie Foxx and Justin Timberlake are starring in TNT’s promotional marketing initiative for the NBA playoffs, dubbed “Win or Go Home.”

Beginning tomorrow, April 2, a long-form ad featuring the two celebs will begin running in some 1,200 Regal Cinemas theaters nationwide.

The spot opens on the two celebrities talking smack about the teams most likely to win the NBA Championship in June. Clips of the likes of Kobe Bryant and LeBron James lead into a montage of other standout players from the Eastern and Western Conferences, including Kevin Garnett, Steve Nash, Carmelo Anthony, Dwight Howard and Vince Carter.

During the rundown of the teams most likely to secure a playoff bid, Foxx says he loves Phoenix, but “there are too many vegetarians” on the team.

A debate about the merits of defense versus point production leads the two spokesmen to ditch a red carpet event for an impromptu game of one-on-one. After each star makes a shot or pivots toward the hoop, the spot cuts to a mirror image of an NBA player making the same move.

The Regal spot, which will eventually appear during the trailer reel in nearly 16,000 Regal Cinemas screens, ends with the NBA Playoffs and TNT logos and the tag “Win or Go Home.”

In addition to the theatrical campaign, a series of spot buys will target major NBA markets Cleveland, Dallas, Denver, Los Angeles and Orlando, Fla. Turner will also place NBA Playoffs teasers on its family of nationally distributed cable networks, including TNT, TBS, CNN and truTV.

Social media will play a significant role over the course of TNT’s two-month hoops push. The NBA on TNT Facebook page offers interactive elements (polls, contests), plus a co-branded “Win or Go Home” Playoff picks game that allows fans to challenge friends to predict the outcomes of various stat categories.

Along with ESPN, TNT will carry the first two best-of-seven rounds of the playoffs, which begin Saturday, April 17. The Turner network will also televise the Western Conference Finals in May, while ESPN will present the Eastern Conference Finals. ABC will once again close out the 2009-10 pro hoops campaign, broadcasting its eighth consecutive NBA Finals in June.