<P> In December 2003 , Welling made his feature film debut as Charlie Baker , the oldest son and second - oldest in the Baker family which had 12 children , in the family comedy Cheaper by the Dozen with Steve Martin and Bonnie Hunt , which is a remake of the 1950 movie starring Clifton Webb and Myrna Loy , based on the 1948 book about the family of Frank and Lillian Gilbreth and written by two of their children . Welling talked about why he was interested in the project in an interview with Paul Fischer : `` The top three reasons I decided to do this film were , one , Steve Martin , two , Steve Martin and three , Steve Martin . That was the number one draw for me . Then , after reading the script , I really liked this character , Charlie . I liked what he went through , what he had to go through , and I felt I understood where he was coming from . And I just wanted to be a part of it . '' Welling had always been a fan of Martin 's and stated that he `` absolutely loved '' working with him . </P>
<P> In December 2003 , Welling made his feature film debut as Charlie Baker , the oldest son and second - oldest in the Baker family which had 12 children , in the family comedy Cheaper by the Dozen with Steve Martin and Bonnie Hunt , which is a remake of the 1950 movie starring Clifton Webb and Myrna Loy , based on the 1948 book about the family of Frank and Lillian Gilbreth and written by two of their children . Welling talked about why he was interested in the project in an interview with Paul Fischer : `` The top three reasons I decided to do this film were , one , Steve Martin , two , Steve Martin and three , Steve Martin . That was the number one draw for me . Then , after reading the script , I really liked this character , Charlie . I liked what he went through , what he had to go through , and I felt I understood where he was coming from . And I just wanted to be a part of it . '' Welling had always been a fan of Martin 's and stated that he `` absolutely loved '' working with him . </P>
who plays charlie in cheaper by the dozen
who plays charlie in cheaper by the dozen
Welling
Welling