Not the answer, but fairly recently I watched Time After Time for the first time in a few decades. It stars Malcolm McDowell as H.G. Wells, who has actually invented the Time Machine he described in his eponymous short novel and invites a select group of friends round to be the first to see it; but, unbeknown to him, one of his friends is actually Jack the Ripper, and on the verge of capture by the police 
Said friend steals the Time Machine and escapes to 1979, where the machine is located in a museum in San Francisco; but it automatically returns to Wells' home in the 19th Century, due to a safety mechanism reliant on a key which Wells still possesses. (You can see the whole temporal paradox business raising its head here.)
So Wells follows his friend to San Francisco in 1979, to prevent Jack the Ripper from continuing his reign of terror in a different century on another continent...
You know, I'm going to watch it again, right now! It's a ripping yarn, and they made good play of Wells realising how much of the stuff he'd proposed in his capacity as a futurist had actually come to pass
Particularly the "Free Love" bit
Said friend steals the Time Machine and escapes to 1979, where the machine is located in a museum in San Francisco; but it automatically returns to Wells' home in the 19th Century, due to a safety mechanism reliant on a key which Wells still possesses. (You can see the whole temporal paradox business raising its head here.)
So Wells follows his friend to San Francisco in 1979, to prevent Jack the Ripper from continuing his reign of terror in a different century on another continent...
You know, I'm going to watch it again, right now! It's a ripping yarn, and they made good play of Wells realising how much of the stuff he'd proposed in his capacity as a futurist had actually come to pass
Particularly the "Free Love" bit
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