Scotland Yard will examine potential risks but said there is currently not 'anything of note' in terms of threats to the concerts.
The actress, who plays Lily Bloom in the film, has so far wowed in a selection of knock-out floral dresses inspired by her character on the film's promo trail.
The pair appeared tense, jubilant and nervous - at times hiding their faces behind their hands - as they watched the men's 3x3 basketball at La Concorde in Paris on Monday.
The former glamour model was absent at a scheduled £760,000 bankruptcy court hearing on Tuesday, having flown overseas for her latest cosmetic procedure.
The French president, who is beleaguered by political chaos after calling a last minute election earlier this summer, told participants afterwards to be 'proud' of their performance.
Humphries is a very short odds-on favourite at 4/9 to come away with the victory, while Van Gerwen is a 13/8 outsider, according to Sky Bet.
