Universal Pictures has announced that Sandra Bullock will voice dreadful Scarlet Overkill in the animated film Minions.

Minions, a spin-off of Despicable Me, will focus on the little yellow creatures first seen in the film in 2010.

This time they will serve Scarlet Overkill, a villain who employed them before Gru.

Minions will be released in North American cinemas in December 2014. In the meantime, Despicable Me 2 is set for release this summer.