You must always steal, but only from the best people. Steal any trick that looks worthwhile. If you see Vivien Leigh or Robert DeNiro or Meryl Streep do something stunningly effective, and you can analyze how he or she did it, then pinch it. Because you can be sure that they stole it in the first place.
Michael CaineIn film, other actors' performances really are not your concern. If the other actor isn't giving you what you want, act as though he were.
Michael CaineI'll always be there because I'm a skilled professional actor. Whether or not I've any talent is beside the point.
Michael Caine