Included in the Free and Studio version of Davinci Resolve is Speed Ramp. Speed Ramp allows very fast setup of adding a rewind video effect on any clip. This tutorial provides useful information on how to reverse video in Resolve and apply rewind effects.
Change sky color of a video clip the easy way. This tutorial shows a blown-out sky with a moving shot. In the Edit page using only one free plugin, the sky color can quickly be changed to blue or any other color or brightness.