I really liked Will Ferrell and Mark Wahlberg in The Other Guys, and Seth Rogden and Jay Chou in the Green Hornet.
What are the best bromances out there? I do love Mike and Harvey- Suits.
Shaun and Gus from the TV series Psych.
Well, there are Arthur & Merlin from Merlin BBC , Dean & Sam from Supernatural and of course Sherlock and John from Sherlock BBC . ^_^