(Cover) - EN Star Style - Keira Knightley enjoys getting dressed up, but only if she does it rarely.

The 25-year-old actress is one of Hollywoods most promising young talents, and she is often praised as much for her elegant style choices as for her impressive acting abilities.

The beautiful star is always the epitome of chic on the red carpet, although she admits that if she attended too many premieres she would soon tire of getting glammed up.

As long as I do it rarely, then I enjoy it. Its always nice to have an occasion to wear a silly frock and get dolled up but Im not really that sort of person, she told Stylist.

Keira confesses being made up and donning a designer gown makes her feel rather regal, especially since she favours such casual attire on a daily basis. The star cites a glittery robe she wore when promoting her 2007 movie Atonement as a firm favourite.

An amazing sparkling dress for the Venice Film Festival for Atonement. It was nothing like Id normally wear and I felt like a princess, she replied when asked for her ultimate red-carpet dress. (C) Cover Media