Joe Jonas and Camilla Belle walk hand-in-hand down a boardwalk over the weekend in Santa Monica, Calif.If you missed it, Joe, 19, showed up to Camilla’s Push premiere on Thursday night. You can check out the video at INFdaily.com.Camilla, 22, recently dished to MoviesOnline about her relationship with co-star Dakota Fanning. She shared, “She definitely knows what she’s doing, and it’s quite apparent. She’s extremely talented and has picked one incredible project after another, and continues to do so. I think what was great about working with her is that we’ve both grown up in the business.”