But seriously, anyone who thinks they’re executed well doesn’t know the first thing about making a movie. By any standard of execution, they are objectively poor.
Look if you want something to be objective you have to have a clear measure. For example, you can define a measure for body motion execution by velocity or force. By measuring either you can then objectively evaluate the motion execution according to the defined measure.
Now to be honest, I can actually define an objective measure even for film execution. You have a script with dialogue that has N number of words. You can then measure number of words M that made it into the final film. This execution measure would then be M/N [no units] or (M/N)*100% [percent]. Of course this is completely useless measure but any objective measure will not make sense in terms of artistic aspects since they are completely subjective.