Honorary Doctorate in Fine Arts from NUI. She has represented Ireland in numerous international Biennales, including the B3 Biennale of the Moving Image Frankfurt, 2017; 25th Biennale de Sao Paulo, 2002 Brazil; The Liverpool Biennial – International 2002, Tate Liverpool: Sounds and Visions 2009, Museum of Modern Art, Tel Aviv and Singapore Biennial 2008. In 2003 Langan presented A Film Trilogy at MoMA in New York. Her films have won numerous international prizes including the Principle Prize at the Oberhausen International Short Film Festival 2007, Germany, and best film at Videoformes 2014, for The Floating World. It was exhibited as a 3-screen installation in VISUAL Center of Contemporary Art in 2015, and has since been exhibited in Städtische Galerie, Delmenhorst, Germany and The Tom Tompson Art Gallery, Canada, where she also exhibited The Winter of 13 Storms.

In 2017 she exhibited her film The Human Flock at Lismore Castle Arts, Ireland. The film travelled to Dirimart, Istanbul July 2018, as part of The Best of Kino der Kunst curated by Heinz Peter Schwerfel. Her film Flight from the City premiered at the B3 Biennale of the Moving Image 2015 in Frankfurt, before touring to Beijing and Shanghai. Jóhann Jóhannsson went on to use Flight from the City to launch his 2016 album Orphee

Her work is in a number of international public and private collections including The Irish Museum of Modern Art, The Arts Council of Ireland and the OPW. She is currently working on two new films Songlines, and The Heart of a Tree.

She is represented by Galerie Anita Beckers, Frankfurt.