Junior has just been watching 'Interstellar', and I've been dipping in and out of it.
It's like a movie-dude got stoned, and tried to make a film of Neil Young's 'After the Gold Rush'.
Anyways, the premise is the Earth is doomed, so we need to fly mother nature's silver seed to a new home in the sun.
So off we go house-hunting, via a convenient worm-hole just off the Saturn by-pass.
So we need a 1960 style Saturn-V with thousands of tons of fuel to leave earth, and dock our dinky lander module to the mothership which is waiting in Earth orbit.
We then drive to Saturn, get on the by-pass, and hang a right at the wormhole intersection.
When we get off at the wormhole exit, there are several planets we need to visit, using the dinky lander module.
All of them have earth-like gravity, and yet we don't need a Saturn-V to return to the mothership.
Just the dinky lander module's Movie-Thrusters which need no fuel.
One of the worlds we visit is close to a black hole.
This means that the time dilation effect between the mothership and the lander is something like 1 hour on the planet's surface is 7 years on the orbiting mothership.
WTF?
To put this in context...
We need a Saturn-V rocket and thousand of tons of fuel to escape from the gravitational gradient created by the Earth, which creates a time dilation effect which requires *atomic clocks* to measure, because it's so tiny.
A time dilation as required by this movie would require such a gravity gradient, that no number of Saturn-Vs could bring you back from the depths of the gravity-well you were in; but Movie-Thrusters seem up to the challenge.