doweshowbellyad=0; Natalie Portman. (AP Photo)More picsNatalie Portman is insecure. The Other Boleyn Girl actress admits she constantly worries about her acting abilities and is paranoid she isn���t good enough to appear on the big screen. She says, ���I often feel insecure and don���t believe in myself. I think we all do unless we���re some kind of egomaniacal freak! Either you push yourself to do something, or someone else looks at you and believes in you, and then you get belief from that.
I guess it would be kind of scary not to doubt yourself. But doubting yourself too much can also become like a sickness.��� Although she is an insecure person, Natalie insists she can be extremely ruthless when going after the film roles she wants. The 26-year-old star adds, ���I can be very scheming, when I really want something!���