Watch Monsters vs Aliens: Mutant Pumpkins from Outer Space (2009) HD Full Movie Free on SolarMovie. Watch Monsters vs Aliens: Mutant Pumpkins from Outer Space (2009) online free. On Halloween, innocent-looking carved pumpkins reveal themselves for what they really are -- mutant ...On Halloween, innocent-looking carved pumpkins reveal themselves for what they really are -- mutant aliens.