“Sentinel” (**1/2 out of four) was a better-than-average sci/fi melodrama set years after an alien invasion in which a group of heroes (Jason R. Moore, Ellie Patrikios, and Neil Cole) embark on a time travel to save the survivors but are unaware that the title evil function is waiting for them resulting in a battle for survival. Full of imaginative and striking visuals from director Stefano Milla and eye-candy cinematography from Alessandro Caldana and Juan Rolando which easily overpower the pedestrian screenplay and story. Still worthwhile especially for sci/fi fans and features some homages to “Event Horizon.”