Jake Gyllenhaal is Horseback Happy

Jake Gyllenhaal mounts a white horse and practices his sword fighting skills for his latest movie, Prince of Persia: The Sands of Time, in England on Thursday.

From the looks of it, Jake is really getting into character with those facial expressions of his. And he’s growing his hair out really long, too!

Girlfriend Reese Witherspoon, 32, is staying with Jake at his London home in Notting Hill. Yesterday, she was spotted shopping at Sienna Miller‘s Twenty8Twelve.

15+ pictures inside of horseback happy Jake Gyllenhaal…