Reconstructions were filmed on the North face of the Eiger and on the Jungfraujoch glacier in Switzerland in March 2011. Pemba Gyalje Sherpa was present for the reconstructions along with Pasang Lama, Tshring Lama, and Chhiring Dorje Sherpa, all of whom were on K2 in August 2008 during the events. Footage from the various teams was used and includes Hoselito Bite, Ger McDonnell, Wilco Van Rooijen, Cecilie Skog, Fredrik Sträng, and Alberto Zerain.