bromance

The Owen Wilson/Vince Vaughn bromance is still strong

Vince Vaughn and Owen Wilson are together again in theaters this summer with their new comedy "The Internship."

The two actors have previously worked together in 2004's "Starsky & Hutch" and 2005's "Wedding Crashers," and they're rekindling their bromance with this movie set at Google's headquarters - although "bromance" isn't exactly a term Vaughn would use.
http://marquee.blogs.cnn.com/2013/05/31/the-owen-wilsonvince-vaughn-bromance-is-still-strong/

bromanceは「性的な関係はない男性同士の親密な関係」という意味になります。(英辞郎 on the WEB)　また、この単語はbrotherとromanceが掛け合わさってできたようです。英英も見てみると、"a close nonsexual friendship between men "とありました。(Merriam-Webster Dictionary)

「兄弟のような仲の良い関係」といったところになるのでしょうか。(Hatahata)