THE sand dunes were awash with big names yesterday as filming of Cecelia Ahern movie Love Rosie came to Portmarnock Strand.
But while Hunger Games star Sam Claflin and Lily Collins kissed for the cameras, keeping an eye on the action was novelist Cecelia (31), husband David Keoghan (34), sister Georgina Ahern (33) and her husband, former Westlife star Nicky Byrne (34).
"Typical Ireland, the sun was shining but there was one hell of wind blowing. The crew were doing their best to keep the breeze off Sam and Lily shooting their scenes," a source on set told the Herald.
Craning to hear every word was Mr Keoghan, who was studiously listening in on a headphone feed.
The father-of-two has already been cast in one of two Cecelia-scripted TV films being made by German channel ZDF in Dublin this summer.
But yesterday he was keen to see how Hollywood filmmakers bring his wife's stories to the big screen.
Based on her novel Where Rainbows End, the romantic comedy stars Sam and Lily as characters Rosie and Alex, star-crossed young lovers who strike up a deep friendship at high school, but who are constantly separated, thwarting their hopes of true love. Their hopes and dreams told in a series of emails, notes and letters they exchange.
After shooting in Toronto, the production moved to Dublin with filming continuing around the capital until mid-July.
After filming was over, cast and crew retired to the nearby Portmarnock Hotel and Golf Links behind the dunes for refreshments.
Love Rosie will be the English-language debut of German director Christian Ditter, with Cecelia's novel adapted for the screen by Juliette Towhidi, who scripted hit movie Calendar Girls.
It is due out next year.
The two German films Zwischen Himmel Und Hier (Between Heaven and Here) and Mein Ganzes Halbes Leben (My Whole Half Life) are based on original ideas from Cecelia.