Pierce Brosnan thinks he looks fat in his latest film, 'Mamma Mia!' and will have to tone up for his next project.

Brosnan is set to reprise his role in 'The Thomas Crown Affair 2', a sequel to the 1999 blockbuster in which he played the über-suave playboy and art thief, Thomas Crown.

While the first film sees Rene Russo as Brosnan’s love interest, the sequel is rumoured to see Angelina Jolie in the female lead. With the script calling for heated love scenes, Brosnan’s onscreen trysts with Jolie could very well be his motivation for getting into shape.

Directed by Paul Verhoeven, 'The Thomas Crown Affair 2' is to be shot in Istanbul and will centre on the theft of the Kasikci Diamond.