Sandra Bullock's Minion-inspired shoes are being auctioned off for charity.

The 50-year-old actress - who plays villain Scarlett Overkill in the new 'Despicable Me' spin-off 'Minions' - has revealed the bright-yellow pumps she wore to the Los Angeles premiere on Saturday (27.06.15) will go under the hammer at non-profit LA-based organisation Art + Practice.

The high heels, costing $800, were designed by Rupert Sanderson in tribute to the cute dungaree-wearing creatures with eye designs on the toes and heels.

She told Entertainment Tonight Canada as she walked the yellow carpet: ''We're going to give all the proceeds to Art + Practice, which is a non-profit organization here in L.A.''

The brunette beauty finished off her look with a black ankle-length dress, which featured a yellow stripe across the chest and sunglasses and appeared in very high spirits as she posed with life-sized versions of the cartoon characters.

The Academy Award-winner was joined at the premiere by her five-year-old son Louis, whom she adopted in 2010, and confessed the youngster has no idea she's starring in the film despite being a huge fan of the 'Despicable Me' movies.

She said: ''He's not going to know it's me.''

And Sandra previously confessed she is thrilled to have made a film that her son is old enough to watch.

She said: ''I wanted to make something my son could see and watch and enjoy, even though he doesn't know what I do and he doesn't know it's me - I can sit in the theatre and watch him.

''Nothing makes me happier than hearing that boy laugh, [by] physical humour and animation so hopefully I'll be able to do that.''