Watch Gravy (2015) HD Full Movie Free on solarmovie.do. Watch Gravy (2015) online free. It's All Hallow's Eve. A trio of costumed misfits with very special dietary requirements seizes a Me...It's All Hallow's Eve. A trio of costumed misfits with very special dietary requirements seizes a Mexican cantina and force the staff to engage in a late night of gaming, food and libations. The only caveat is what's on the menu.