Taylor Lautner and Patrick Schwarzenegger Bro It Up

Taylor "Twilight" Lautner and Patrick "son of Arnold" Schwarzenegger have become friends after working together on the upcoming movie "Grown Ups 2." The duo were seen playing football with a group of pals, including Lautner's on-again, off-again girlfriend from high school, Sara Hicks, in Calabasas, California, on Sunday.

Lautner, 20, and Schwarzenegger, 19, have a lot in common. Not only are they about the same age and living very high-profile lives, but they're also both health nuts. The "Twilight" actor famously bulked up to ensure that he didn't lose his role as a werewolf in the vampire flicks, and Schwarzenegger — a model and a student in his first year at USC — declares himself a "health and fitness lover" on his Twitter profile. Perhaps his dad Arnold was a good influence in that way?

Both have also been linked to that serial heartbreaker Taylor Swift. Lautner dated the singer-songwriter briefly in 2009, while Schwarzenegger was photographed with TSwift last summer, just before she began dating his cousin, Conor Kennedy, whom she ended things with in October.

Bros Lautner and Schwarzenegger will play fraternity brothers in "Grown Ups 2," the sequel to the 2010 Adam Sandler comedy "Grown Ups," which co-stars Salma Hayek, Chris Rock, Kevin James, David Spade, and Rob Schneider. Schwarzenegger's role in the July 12 movie is a big deal, since he's only had tiny parts in two smaller projects before now. Besides his famous dad and mom Maria Shriver, he's known for being one of three founders of Project360, a clothing brand that donates to charity with each purchase.

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