Abta & Markovich have some other highly entertaining shorts on YouTube—namely Sarge, Episode 1: Happy Birthday Sarge; Sarge, Episode 2: Family Matters; and Urbunnies. All three are extremely hilarious examples of multi-violent black humour. For Smile, wisely enough, they dumped their humour for an unsettling visual surrealism.
Noam Abta, whose hobby (among others) is “naked horseback riding” and who counts Deep Throat (1972 / opening credit sequence) among his favourite films, and Yuval Markovich, about whom I can find very little info on the web, went on after art school to found the animated short-film portal aniboo.com, which they left to move from product and technology into game design. The result is nitako.com and the popular aiPhone app, Rasta Monkey.