Jake's New BFF

Jake was spotted in San Diego last week, visiting the set of HBO's pilot "John from Cincinnati," where his pal Austin Nichols plays the lead. Gyllenhaal arrived and was immediately escorted to Nichols' trailer, where they spent most of the day. Austin left the trailer only to grab some grub for the two from catering tables. This photo shows the best friends at a Lakers game in 2006.

Then, this past Saturday, TMZ spies spotted Jake and Austin in Los Angeles, having a quiet dinner at Jar restaurant. The two eluded having their pic taken by paparazzi when they escaped through the kitchen's backdoor. Reese Witherspoon, who has been romantically linked with Jake, was not present.

This is not the first we've seen of Jake and Austin -- their friendship goes back to the 2004 filming of "The Day After Tomorrow." Unlike the trio of Jake, Matt and Lance, this duo appears to be a lasting friendship.