Watch Percy Jackson & the Olympians: The Lightning Thief (2010) HD Full Movie Free on SolarMovie. Watch Percy Jackson & the Olympians: The Lightning Thief (2010) online free. A teenager discovers he's the descendant of a Greek god and sets out on an adventure to settle an on...A teenager discovers he's the descendant of a Greek god and sets out on an adventure to settle an on-going battle between the gods.