Both women looked radiant with their big smiles and flowing locks, but, for us there is one clear winner in the style stakes – and that award goes to Kate Beckinsale for her black mini-dress and waist-cinching belt.
Although we do it love when people venture out on a fashion limb, Jessica's patterned shorts and metallic crop top make her look more like a beauty queen at a pyjama party than the chic, super-sexy woman were used to seeing.
The pretty pair was in attendance for the 'At The Drive In'panel, which took a look back at the genre films of yesteryear.
Which look do you prefer? Leave us a comment below.