Perhaps the cunning grace of playing werewolf Jacob Black didn't rub off on Taylor Lautner?

The young star of New Moon was on set today filming Valentine's Day, a new rom-com where he plays a track star, and RadarOnline.com has a video of him completely wiping out!

Taylor quickly recovered on the set of Garry Marshall's ensemble, then focused on filming scenes with fellow teen sensation Taylor Swift.

Looking like a cute new couple, the Taylors spent the day out in the field.

The songstress looked lovely in a bright blue dress, and Lautner buff in his gym gear.

If these two were dating off-set, what would their nickname be? T2? T Squared?

Radar Online