Several of the large scale shots are pretty reminiscent, such as the Prometheus traveling in the planets atmosphere and the ship landing.
Its just that there really aren't any other recent sci-fi films other than Avatar that properly display absolutely huge scale outer space/planet settings, so its kinda natural to see a resemblance, even if faint.
There might be one-off shots here and there but in terms of tone, atmosphere, texture and mood they couldn't be more different.