By the time the Academy Awards rolls out the red carpet each year,

While the Academy has strict rules to help ensure standout films and performances win fair and square

this year's unexpected nomination of Andrea Riseborough in the best actress

category has sparked debate about how the process works.

In the wake of the controversy, Academy president Janet Yang told Sky News campaigning rules

will be revisited again following this year's ceremony, with the "changing environment" of social media in particular to be looked at

"We are going to buckle down and look very closely at the regulations that have been with us for a while,"