Michael Peña
The End of Watch costars played partners turned best friends in the intense drama, which led to the actors bonding in real-life too.
Lance Armstrong
Jake spent 2006 peddling alongside the now disgraced Tour de France cyclist, sparking rumors he might play his pal in a bike-centric biopic.
Jonah Hill
A seemingly random duo, Jake and the Superbad star were spotted sharing a laugh while grabbing lunch together in New York.
Maggie Gyllenhaal
Who says siblings can't be friends too?! Jake and his famous older sister have bonded over acting since they were little kids.
Peter Sarsgaard
The brother-in-laws that sweat together, stick together! Jake and sister Maggie's husband have bonded over workouts in the past.
Busy Philipps
Jake and Busy are connected through Heath Ledger and Michelle Williams. Both act as godparents to the couple's daughter, Matilda.
Marcus Mumford
Not only are Jake and the Mumford & Sons frontman buds, but Jake is credited for introducing Marcus to wife Carey Mulligan.
Rashida Jones
Jake and the Parks and Recreation star run in the same circles. Plus, Jones apparently loves Jake's dog, Atticus.
America Ferrera
The End of Watch costars bonded so much during filming that they've been spotted hanging out long after the movie premiered.
Matthew McConaughey
Back in 2006, Jake and McConaughey were practically inseperable, often seen biking with mutual pal Lance Armstrong.
Jude Law
At one point, Jake was in talks to replace Jude in the western Jane Got a Gun. Perhaps that's what the duo chatted about at lunch.
Taylor Swift
Jake and Taylor spent a maple lattes-soaked winter together that maybe inspired a song or two on her album. On second thought, they're probably not friends anymore.