By James Brinsford Sydney Sweeney took a bold swipe at he new film, Madame Web, which has performed disastrously at the box office, as she made her hosting debut on Saturday Night Live. The 26-year-old Euphoria star started her monologue by joking that she has achieved her famous hourglass figure by using weight loss drug Ozempic, before poking fun at rumours that she had had an affair with her Anything But You co-star Glenn Powell while engaged to businessman Jonathan Davino. Sydney gushed about her fiancé to the audience, saying that there was no chance that she could have had an affair. She…