Big Bad Sis; wrong character


If I'm right, the title in characters is 沙胆英 not
沙明英. This title is also on the DVD cover as you can see HERE.
(Don't forget to change the transcriptions.)
There's only one strange thing about it, perhaps one of you can help me?
Accoording to some dictionairies 胆 is a simplified form of 膽, so it should not be on a Hong Kong DVD?
On this poster

You can see the 'simplified' character 胆 next to the traditional character 龍.
By the way: The characters you got are 鼠膽龍威, the characters on the poster are 鼠胆龍威