Smith was a member of the British sketch comedy group Dutch Elm Conservatoire, who were nominated for the prestigious Perrier Award for their show Conspiracy in August 2005.

As an actor, he appeared in various British TV comedies such as Coupling, Snuffbox and My Life in Film, and numerous commercials both on screen and as a voiceover artist.

[1] In Pittsburgh, Pennsylvania in 2008, he directed Jay Baruchel and Alice Eve in his first full-length feature, the DreamWorks romantic comedy She's Out of My League, released worldwide by Paramount Pictures in 2010.

[2] He directed the second season of Episodes for BBC and Showtime, starring Matt LeBlanc, gaining BAFTA and Golden Globe nominations for "Best Comedy".

[6] Outside of scripted film and television work, Smith has directed a number of commercials, including campaigns for Cow & Gate, Heinz, Burger King, Smirnoff and MINI.