That was over 14 years ago in 2008.
Today he is 61, and has starred in 81 movies in total, 29 since Mamma Mia! was released.
In Mamma Mia!, I think Colin Firth looks:
Mamma Mia! scores 6.5 out of 10 on The Movie Database.
Colin Firth's first acting role was as 'Tommy Judd' in Another Country, released in 1984 when he was 23.