Television:
* The Crown (2016-present) - She played the role of Princess Margaret in the Netflix historical drama series. This role brought her significant recognition.
* Call the Midwife (2012-present) - Bloom appeared in a recurring role as Sister Bernadette in this popular BBC period drama.
* The Last Kingdom (2015-2020) - She had a guest role in this historical drama as Lady Æthelflæd.
* Doctors (2000-present) - Bloom appeared in an episode of this long-running British medical drama.
Film:
* The King's Speech (2010) - Bloom appeared as a guest at a royal event in this Oscar-winning film.
* The Duchess (2008) - She played Lady Elizabeth Foster in this historical drama film.
* The Golden Compass (2007) - Bloom had a role as a Witch in this fantasy adventure film.
This is not an exhaustive list, and she has appeared in other projects throughout her career. You can find more detailed information about her work on websites such as IMDb.