H.G. Wells' War of the Worlds

A top-secret government weapons designer is arrested by a clandestine government organization on suspicion of being a clone created by the hostile alien race wanting to take over Earth.

A boy tries to stop aliens that have taken over his town and are brainwashing its inhabitants.

Ba'al travels back in time and prevents the Stargate program from being started. SG-1 must somehow restore history.

Major Bill Cage is an officer who has never seen a day of combat when he is unceremoniously demoted and dropped into combat. Cage is killed within minutes, managing to take an alpha alien down with him. He awakens back at the beginning of the same day and is forced to fight and die again... and again - as physical contact with the alien has thrown him into a time loop.

Adventurer/surgeon/rock musician Buckaroo Banzai and his band of men, the Hong Kong Cavaliers, take on evil alien invaders from the 8th dimension.