Severely underweight from his role in "The Machinist", Christian Bale gained 100 pounds to play this role
[DOC] [TLE] The Machinist Archives - Page 2 of 2 Christian Bale | Baleheads ... [PAR] Jun 13, 2010 ... De Niro shed 35Ibs for his role in the 1976 classic Taxi Driver and Hanks ... man, 
Christian Bale lost more than 63 pounds to play in the Machinist in 2003.