The Philadelphia Experiment (1984)

So as the conspiracy theory goes, a US warship was used in anti-radar tests in 1943 but the fields used managed to open a hole in the space-time continuum. This film takes the idea and runs with it, two sailors are hurled into the future (well 1943) where a second experiment was conducted by Dr Longstreet (Eric Christmas) despite his earlier experiment in the war ending in disaster.

David (Michael Pare) and Jim (Bobby Di Cicco) find their new world rather confusing, especially when they reach a roadside bar and encounter TV for the first time. In trouble from the off, they kidnap Alison (Nancy Allen) and head off deeper into Nevada... and away from a hole in space-time which threatens to destroy the world.

Both of the sailors are out of their true time and soon Jim is hurled back to 1943 but David continues on wards with Alison though the authorities are not far away...

An enjoyable time-travel science-fiction story with plenty of romance and adventure (maybe a few too many car chases). The film keeps the conspiracy theory in the background and stays pretty grounded (well as grounded as you can with time travel and space-time vortices!)