But the Mummy film earned 4% more on DVD that Journey to the Center of the Earth which had been in 3-D at theaters.

FORBES: How 3-D Could Stall DVD Sales

"Channing and mummy were not only mother daughter but they were best friends who told each other everything, " she added.

BBC: Cpl Channing Day

The actress, who was previously married to Jude Law, said she was preparing for a new role, but had otherwise been "getting on with the school runs and being a mummy at home".

BBC: Screen stars battle it out at theatre awards

But modern would-be immortals know that old-fashioned cure-alls, like the ground mummy dust to which hopeful aristocrats turned in medieval times, were only so much quackery.

FORBES