LONDON — Mena Suvari, Talulah Riley (“Pride and Prejudice”) and Noel Clarke (“4,3,2,1”) are set to topline romantic comedy “The Knot,” which begins lensing in London this week.

Pic, which is produced through Clarke’s shingle Unstoppable Ent. alongside production house New Treatment, also stars Matthew McNulty (“Control”), Jason Maza (“Fish Tank”) and Juliet Oldfield (“Bronson”).

Clarke has co-written the script with Davie Fairbanks and Geoff Carino, while “Mash Up’s” Jesse Lawrence directs.

Story follows the tale of a couple who are about to get married but see a series of mishaps, including missing bridesmaids and crashed cars, wreak havoc to their upcoming wedding day.

Exile Media Group is distributing the pic in Blighty while beActive Entertainment is exec producing.