I'm not sure there is a movie that comparisons couldn't be made. It will usually come down to how well the material is integrated into the story before someone calls foul. I'm surprised that Terminator wasn't mentioned with the scene within the hideout. Pulling ideas from other movies only bothers me if it triggers an earlier movie memory. If the flow is good, that doesn't happen.
How many times have we seen a plot where a stranger arrives on scene, is interested in a female, she is already attached, the attached guy is a jerk, stranger attracts female, female falls for stranger, female becomes disenchanted with stranger, female goes back to jerk, stranger makes amends, female drops jerk again and ends of with stranger. Yes, guilty. I've watched Rom-Coms with my wife.
The same can be constructed of a scif-fi plot, horror plot, who done it.....etc.
Home Theater Man Cave: Onkyo 7.1 Klipsch LaScala Mains, Shortened LaScala Klone Center, Klipsch Academy Surrounds and Rears; Panasonic AE8000, Panasonic BDP 460, 117" DIY Screen.
Garage Man Cave: LaScala Industrial Splits; Second hand Denon Amp