The cast of What to Expect When You're Expecting were out in force for the UK premiere at London's IMAX cinema last night. With temperatures finally reaching agreeable levels in the capital, the stars had a chance to showcase some light summer styles, with British designers making the biggest impact on the red carpet.

Leading lady Cameron Diaz shone in a strapless white jumpsuit, while Cheryl Cole, who has a supporting role as a talent show judge in the film, wore one of 's spring summer 2012 designs. Actors Chace Crawford and Matthew Morrison also attended.

The film tells the story of a number of couples who experience the joys and trials of early parenting. The cast also includes Anna Kendrick and Jennifer Lopez. With the premiere held at the IMAX, it was an experience for all in attendance to witness childbirth scenes on the 20-metre-high screen, which sensitive viewers may find easier to watch at their local multi-plex.

What to Expect When You're Expecting opens in cinemas on 25 May