 Frequent references are made to Big Als claim that dogs cant look  up. This is a reference to the commentary to the second series of  _"Spaced" (1999)_ (qv) in which Simon Pegg (qv) (Shaun) and  Edgar Wright (qv) talk about Nick Frost (I) (qv) (Ed)s claim  that the difficulty in shooting a scene with a dog was due to the  fact that dogs cant look up.