Jake Gyllenhaal was spotted on the set of Nocturnal Animals on Tuesday in LA, where he showed off his sexy smirk in between scenes. Wearing a plaid shirt and sporting a scruffy beard, Jake had a mountain-man look going on while filming alongside costar Isla Fisher. The on-set moment comes just a few weeks after Jake made some fun late-night appearances. First he offered a hilarious response to Amy Schumer's cake-eating confession when he sat down with Stephen Colbert, and then he was measured by Conan O'Brien, who hoped to solve the mystery of Jake's height once and for all. Keep reading to check out more pictures of Jake Gyllenhaal on set, and then see his sexy appearance at last month's Everest premiere in LA.